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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT
OF 1934
For the Quarterly Period ended June 30, 2003

Commission file number: 0-29630

SHIRE PHARMACEUTICALS GROUP PLC
-------------------------------
(Exact name of registrant as specified in its charter)


England and Wales 98-0359573
----------------- ----------
(State or other jurisdiction (I.R.S. Employer Identification No.)
of incorporation or organization)


Hampshire International Business Park, Chineham, RG24 8EP
- ------------------------------------------------- --------
Basingstoke, Hampshire, England (Zip Code)
-------------------------------
(Address of principal executive offices)

44 1256 894 000
---------------
(Registrant's telephone number, including area code)


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months, and (2) has been subject to such filing requirements
for the past 90 days.

Yes [X] No [ ]

Indicate by check mark whether the Registrant is an accelerated filer (as
defined in Rule 12b-2 of the Exchange Act).
Yes [X] No [ ]


As of August 4, 2003, the number of outstanding common shares of the Registrant
was 477,302,140.


1



THE "SAFE HARBOR" STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT
OF 1995

Statements included herein that are not historical facts, are forward-looking
statements. Such forward-looking statements involve a number of risks and
uncertainties and are subject to change at any time. In the event such risks or
uncertainties materialize, Shire's results could be materially affected. The
risks and uncertainties include, but are not limited to, risks associated with
the inherent uncertainty of pharmaceutical research, product development,
manufacturing and commercialization, the impact of competitive products,
including, but not limited to, the impact on Shire's Attention Deficit
Hyperactivity Disorder (ADHD) franchise, patents, including but not limited to,
legal challenges relating to Shire's ADHD franchise, government regulation and
approval, including but not limited to the expected product approval date of
lanthanum carbonate (FOSRENOL(R)), METHYPATCH(R), XAGRID(R) and the adult
indication for ADDERALL XR(R) and other risks and uncertainties detailed from
time to time in our filings, including the Annual Report filed on Form 10-K by
Shire with the Securities and Exchange Commission.

The following are trademarks of Shire or companies within the Shire Group, which
are the subject of trademark registrations in certain territories.

ADDERALL XR(R) (mixed amphetamine salts)
ADDERALL(R) (mixed amphetamine salts)
AGRYLIN(R) (anagrelide hydrochloride)
AMATINE(R) (midodrine hydrochloride)
CALCICHEW(R) (calcium carbonate)
CARBATROL(R) (carbamazepine)
COLAZIDE(R) (basalazide)
ETHMOZINE(R) (moracizine hydrochloride)
FARESTON(R) (toremifene)
FOSRENOL(R) (lanthanum carbonate)
FLUVIRAL(R) S/F (split virion influenza vaccine)
INDURGAN(R) (omeprazole)
METHYPATCH(R) (methylphenidate)
PROAMATINE(R) (midodrine hydrochloride)
SOLARAZE(R) (diclofenac sodium 3%)
TROXATYL(R) (troxacitabine)
XAGRID(R) (anagrelide hydrochloride)

The following are trademarks of third parties.

3TC (trademark of GlaxoSmithKline (GSK))
ADEPT (trademark of ML Laboratories)
COMBIVIR (trademark of GSK)
EPIVIR (trademark of GSK)
EPIVIR-HBV (trademark of GSK)
HEPTOVIR (trademark of GSK)
PENTASA (trademark of Ferring AS)
REMINYL (trademark of Johnson & Johnson)
TRIZIVIR (trademark of GSK)
ZEFFIX (trademark of GSK)







2



PART I. FINANCIAL INFORMATION
ITEM 1. Financial Statements



SHIRE PHARMACEUTICALS GROUP PLC
CONSOLIDATED BALANCE SHEETS

(Unaudited)
June 30, December 31,
2003 2002
Notes $'000 $'000
------ ------------ -------------
ASSETS
Current assets:

Cash and cash equivalents 967,480 897,718
Marketable securities 217,677 316,126
Accounts receivable, net (5) 194,908 138,397
Inventories, net (6) 54,405 49,216
Deferred tax asset 36,759 34,849
Prepaid expenses and other current assets 35,355 30,790
---------- ----------
Total current assets 1,506,584 1,467,096

Investments (7) 79,117 71,962
Property, plant and equipment, net 167,014 135,234
Goodwill, net 209,134 203,767
Other intangible assets, net (8) 313,898 301,084
Deferred tax asset 22,101 6,216
Other non-current assets 22,630 23,264
---------- ----------
Total assets 2,320,478 2,208,623
---------- ----------
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Current instalments of long-term debt 1,024 888
Accounts payable and accrued expenses 186,083 184,107
Other current liabilities 30,701 15,492
---------- ----------
Total current liabilities from continuing operations 217,808 200,487
Current liabilities from discontinued operations - 12,784
---------- ----------
Total current liabilities 217,808 213,271
---------- ----------
Long-term debt, excluding current instalments (9) 377,592 407,302
Other non-current liabilities 11,913 14,884
---------- ----------
Total liabilities 607,313 635,457
---------- ----------
Shareholders' equity:
Common stock, 5p par value: 800,000,000 shares authorized; 477,292,144
(2002: 484,344,412) shares issued and outstanding 39,469 40,051
Exchangeable shares: 5,840,110 (2002: 5,874,112) shares issued and
outstanding 270,698 272,523
Additional paid-in capital 979,744 1,027,499
Accumulated other comprehensive income/(loss) 20,179 (41,431)
Retained earnings 403,075 274,524
---------- ----------
Total shareholders' equity (10) 1,713,165 1,573,166
---------- ----------
Total liabilities and shareholders' equity 2,320,478 2,208,623
---------- ----------

The accompanying notes are an integral part of these consolidated financial
statements.



3



SHIRE PHARMACEUTICALS GROUP PLC
CONSOLIDATED STATEMENTS OF OPERATIONS
(Unaudited)



3 months to 3 months to 6 months to 6 months to
June 30, June 30, June 30, June 30,
2003 2002 2003 2002
Notes $'000 $'000 $'000 $'000
------ ---------- ---------- ---------- ----------
Revenues:

Product sales 246,450 206,861 502,803 403,368
Licensing and development 702 923 1,096 1,605
Royalties 51,836 40,512 99,599 80,088
Other revenues - (212) 7 5
---------- ---------- ---------- ----------
Total revenues (2) 298,988 248,084 603,505 485,066

Costs and expenses:
Cost of product sales (2) 38,993 29,721 77,638 54,741
Research and development (2) 50,097 46,802 104,695 96,531
Selling, general and administrative (inclusive of
stock option compensation charge of $nil, $152,000,
and credits of $24,000 and $150,000 respectively) 115,681 96,336 237,763 188,276
Losses on dispositions of assets - 116 - 116
---------- ---------- ---------- ----------
Total operating expenses (2) 204,771 172,975 420,096 339,664
---------- ---------- ---------- ----------
Operating income (2) 94,217 75,109 183,409 145,402

Interest income 4,298 4,820 9,411 9,551
Interest expense (2,689) (1,796) (5,337) (3,773)
Other (expense)/income, net (3,679) (910) (7,295) 231
---------- ---------- ---------- ----------
Total other (expense)/income, net (2,070) 2,114 (3,221) 6,009
---------- ---------- ---------- ----------
Income from continuing operations before income
taxes and equity in (losses)/earnings of equity
method investees 92,147 77,223 180,188 151,411
Income taxes (25,457) (21,323) (49,983) (41,080)
Equity in (losses)/earnings of equity method
investees (1,205) 1,855 (1,654) 2,599
---------- ---------- ---------- ----------
Income from continuing operations 65,485 57,755 128,551 112,930
Income from discontinued operations (net of income
tax expenses of $nil, $912,000, $nil and $1,868,000
respectively) - 1,552 - 3,179
---------- ---------- ---------- ----------
Net income 65,485 59,307 128,551 116,109
---------- ---------- ---------- ----------














4



SHIRE PHARMACEUTICALS GROUP PLC
CONSOLIDATED STATEMENTS OF OPERATIONS (CONTINUED)
(Unaudited)



3 months to 3 months to 6 months to 6 months to
June 30, June 30, June 30, June 30,
Notes 2003 2002 2003 2002
---------- ---------- ---------- ----------
Earnings per share - basic

Income from continuing operations 13.1c 11.5c 25.6c 22.6c
Income from discontinued operations - 0.4c - 0.6c
---------- ---------- ---------- ----------
(3) 13.1c 11.9c 25.6c 23.2c
---------- ---------- ---------- ----------
Earnings per share - diluted
Income from continuing operations 12.8c 11.3c 25.1c 22.0c
Income from discontinued operations - 0.3c - 0.6c
---------- ---------- ---------- ----------
(3) 12.8c 11.6c 25.1c 22.6c
---------- ---------- ---------- ----------
Weighted average number of shares:
Basic 501,504,962 500,365,947 501,746,083 500,147,383
Diluted 522,559,387 523,990,414 522,652,319 525,324,877



The results for the three and six months ended June 30, 2002 have been restated
to reflect the disposal of the "Over-The-Counter" (OTC) business, which has been
accounted for as a discontinued operation.

The accompanying notes are an integral part of these consolidated financial
statements.


SHIRE PHARMACEUTICALS GROUP PLC
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME/(LOSS)
(Unaudited)



3 months to 3 months to 6 months to 6 months to
June 30, June 30, June 30, June 30,
2003 2002 2003 2002
$'000 $'000 $'000 $'000
---------- ---------- ---------- ----------

Net income 65,485 59,307 128,551 116,109

Other comprehensive income:
Foreign currency translation adjustments 40,532 43,644 56,255 37,680
Unrealized holding gain on available for sale securities 11,141 - 5,355 -
---------- ---------- ---------- ----------
Comprehensive income 117,158 102,951 190,161 153,789
---------- ---------- ---------- ----------



The components of accumulated other comprehensive income/(loss) as at June 30,
2003 and December 31, 2002 are as follows:




June 30, December 31,
2003 2002
$'000 $'000
---------- ----------

Foreign currency translation adjustments 13,560 (42,695)
Unrealized holding gain on available for sale securities 6,619 1,264
---------- ----------
Accumulated other comprehensive income/(loss) 20,179 (41,431)
---------- ----------


The accompanying notes are an integral part of these consolidated financial
statements.


5



SHIRE PHARMACEUTICALS GROUP PLC
CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
(Unaudited)



6 months to 6 months to
June 30, June 30,
2003 2002
$'000 $'000
---------- ----------
CASH FLOWS FROM OPERATING ACTIVITIES:

Net income from continuing operations 128,551 112,930
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization 21,461 17,812
Stock option compensation credit (24) (150)
Tax benefit of stock option compensation, charged directly to equity - 689
Increase in deferred tax asset (17,795) (4,695)
Non-cash exchange gains and losses 5,937 1,672
Equity in losses/(profits) of equity method investees 1,654 (2,599)
Write-down of long-term investments 8,472 2,500
Write-down of intangible assets 3,287 4,500
Loss on sale of fixed assets - 116
Changes in operating assets and liabilities:
(Increase)/decrease in accounts receivable (56,511) 53,404
Increase in inventory (5,189) (9,409)
(Increase)/decrease in prepayments and other current assets (4,565) 4,328
Decrease in other assets 634 569
Increase/(decrease) in accounts and notes payable and other liabilities 1,431 (52,417)
Decrease in unearned income - (17,409)
---------- ----------
Net cash provided by operating activities 87,343 111,841
---------- ----------
CASH FLOWS FROM INVESTING ACTIVITIES:
Decrease in short-term deposits 98,449 498,021
Purchase of long-term investments (1,475) (1,017)
Purchase of intangible assets (25,500) (18,510)
Purchase of property, plant and equipment (27,601) (7,648)
---------- ----------
Net cash provided by investing activities 43,873 470,846
---------- ----------
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchase/payments on long-term debt, capital leases and notes (29,879) (2,583)
Proceeds from exercise of options 2,254 3,552
Payments for redemption of common stock (52,392) -
---------- ----------
Net cash (used in)/provided by financing activities (80,017) 969
---------- ----------

Effect of foreign exchange rate changes on cash and cash equivalents 18,563 9,489
---------- ----------
Net increase in cash and cash equivalents 69,762 593,145
Cash flows provided by discontinued operations - 3,338
---------- ----------
Net increase in cash and cash equivalents 69,762 596,483
Cash and cash equivalents at beginning of period 897,718 118,040
---------- ----------
Cash and cash equivalents at end of period 967,480 714,523
---------- ----------


The accompanying notes are an integral part of these consolidated financial
statements.

6



SHIRE PHARMACEUTICALS GROUP PLC
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

1. Summary of Significant Accounting Policies

a) Description of Operations and Principles of Consolidation

Shire Pharmaceuticals Group plc (`Shire' or `the Company') is a global specialty
pharmaceutical company with a strategic focus on meeting the needs of the
specialist physician and currently has a range of projects and products in the
areas of central nervous system (CNS), gastrointestinal (GI), and renal.

Shire has operations in the world's key pharmaceutical markets (US, Canada, UK,
France, Italy, Spain and Germany) as well as a specialist drug delivery unit in
the US.

The business is currently operated and managed within five individual operating
segments: US, International, Corporate, Global Research and Development and
Biologics (vaccines). Shire, however, announced on July 31, 2003 the intention
to spin-off the vaccines business. Within these segments, revenues are derived
primarily from three sources: sales of products by Shire's own sales and
marketing operations, royalties (where Shire has out-licensed to third parties)
and licensing and development fees.

The Company has a particular interest in innovative therapies that are
prescribed by specialist doctors as opposed to primary care physicians. The
Company announced on July 31, 2003 its intention to close the early stage
research unit based in Canada. Shire's strategic priority will now be on the
development of late stage and lower risk projects. Shire will continue to
strengthen its portfolio through merger and acquisition activities and will also
in-license projects and products on reasonable commercial terms, and then
develop and launch them.

The Company's principal revenues include:

o in the US, ADDERALL XR and ADDERALL for the treatment of ADHD; AGRYLIN
for the treatment of elevated blood platelets; PENTASA for the
treatment of ulcerative colitis; CARBATROL for the treatment of
epilepsy; and PROAMATINE for the treatment of orthostatic hypotension.
In addition, the Company receives royalties on sales of REMINYL for
the treatment of Alzheimer's disease, marketed by Johnson & Johnson,
and on EPIVIR, COMBIVIR and TRIZIVIR for the treatment of HIV/AIDS and
EPIVIR-HBV for the treatment of hepatitis B, each marketed by GSK;

o in the UK and the Republic of Ireland, the CALCICHEW range, used
primarily as adjuncts in the treatment of osteoporosis, and REMINYL,
which is co-promoted by Janssen-Cilag;

o in Canada, 3TC for the treatment of HIV/AIDS, COMBIVIR and HEPTOVIR
(all marketed in partnership with GSK); AMATINE and FLUVIRAL S/F, a
vaccine for the prevention of influenza;

o in the Rest of the World, royalties on the sales of ZEFFIX for the
treatment of hepatitis B, marketed by GSK, and royalties on sales of
REMINYL marketed by Johnson & Johnson.

In addition, the Company has a number of projects in late stage development
including:

o FOSRENOL for the treatment of high blood phosphate levels associated
with kidney failure. The Company submitted the first regulatory
submission for FOSRENOL under the European Mutual Recognition
procedure on March 13, 2001 and a New Drug Application with the US FDA
on April 30, 2002;

o TROXATYL for the treatment of leukemia and pancreatic cancer. The
Company has recently announced its decision to out-licence TROXATYL;

o METHYPATCH, a transdermal delivery system for the once daily treatment
of ADHD;

o Adult indication for ADDERALL XR.

Furthermore, on July 25, 2003 the Company received positive Committee for
Proprietary Medicinal Products opinion for XAGRID (which is the trade name of
AGRYLIN in the EU) in Europe.


7



1. Summary of Significant Accounting Policies (continued)

b) Basis of Presentation

These interim financial statements, which include the operations of the Company,
and the financial information included here are unaudited. They have been
prepared in accordance with generally accepted accounting principles in the
United States of America (US GAAP) and Securities and Exchange Commission
regulations for interim reporting. Certain information and footnote disclosures
normally included in financial statements prepared in accordance with US GAAP
have been condensed or omitted pursuant to such rules and regulations. However,
such information includes all adjustments (consisting solely of normal recurring
adjustments), which are, in the opinion of management, necessary to fairly state
the results of the interim periods. Interim results are not necessarily
indicative of results to be expected for the full year.

The December 31, 2002 balance sheet was derived from audited financial
statements but does not include all disclosures required by US GAAP. However,
the Company believes that the disclosures are adequate to make the information
presented not misleading.

These interim financial statements should be read in conjunction with the
Company's consolidated balance sheets as of December 31, 2002 and 2001, and the
related consolidated statements of operations, cash flows and changes in
stockholders' equity for each of the three years in the period ended December
31, 2002.

c) Accounting Pronouncements adopted during the period

In November 2002, the Financial Accounting Standards Board (FASB) issued
Interpretation Number 45, "Guarantor's Accounting and Disclosure Requirements
for Guarantees, Including Indirect Guarantees of Indebtedness of Others" (FIN
45). This interpretation requires certain disclosures to be made by a guarantor
in its interim and annual financial statements about its obligations under
certain guarantees that it has issued. It also requires a guarantor to
recognise, at the inception of a guarantee, a liability for the fair value of
the obligation undertaken in issuing the guarantee. The disclosure requirements
of FIN 45 are effective for interim and annual periods after December 15, 2002
and we have adopted these requirements for the six month period ended June 30,
2003. The initial recognition and initial measurement requirements of FIN 45 are
effective prospectively for guarantees issued or modified after December 31,
2002. The adoption of this Statement did not have an impact on the Group's
financial statements.

In June 2001, the FASB issued SFAS No. 143, "Accounting for Asset Retirement
Obligations" (SFAS No. 143). SFAS No. 143 requires that the fair value of a
liability for asset retirement obligations be recognized in the period in which
it is incurred if a reasonable estimate of the fair value can be made. The
associated asset retirement costs are capitalized as part of the carrying amount
of the related long-lived asset. SFAS No. 143 is effective for financial
statements issued for fiscal years beginning after June 15, 2002. The Company
adopted SFAS No. 143 on January 1, 2003 and there was no impact on the Group's
financial statements.

On January 1, 2003, the Company adopted FASB Statement No. 146, "Accounting for
Costs Associated with Exit or Disposal Activities", which requires companies to
recognise a liability for costs associated with exit or disposal activities when
they are incurred, rather than at the date of commitment to an exit plan or
disposal plan. The adoption did not have an impact on the Company's consolidated
financial position or results of operations.

d) New Accounting Pronouncements

In January 2003, the FASB issued FIN No. 46, "Consolidation of Variable Interest
Entities, an Interpretation of APB No. 51" (FIN 46). This interpretation
requires certain variable interest entities to be consolidated by the primary
beneficiary of the entity if the equity investors in the entity do not have the
characteristics of a controlling financial interest or do not have sufficient
equity at risk for the entity to finance its activities without additional
subordinated financial support from other parties. FIN 46 is effective for all
new variable interest entities created or acquired after January 31, 2003, of
which, within the Company, there are none. For variable interest entities
created or acquired prior to February 1, 2003, the provisions of FIN 46 must be
applied for the first interim or annual period beginning after June 15, 2003.
The Company is currently evaluating the effect the adoption of FIN 46 will have
on its existing operations.


8



1. Summary of Significant Accounting Policies (continued)

d) New Accounting Pronouncements (continued)

In April 2003, the FASB issued Statement No. 149, "Amendment of SFAS No. 133 on
Derivative Instruments and Hedging Activities" (SFAS No. 149). The Statement
amends and clarifies accounting for derivative instruments, including certain
derivative instruments embedded in other contracts, and for hedging activities
under SFAS No. 133. In particular, it (1) clarifies under what circumstances a
contract with an initial net investment meets the characteristic of a derivative
as discussed in SFAS No. 133, (2) clarifies when a derivative contains a
financing component and (3) amends certain other existing pronouncements.

SFAS No. 149 is effective for contracts entered into or modified after June 30,
2003, except as stated below, and for hedging relationships designated after
June 30, 2003. The provisions of SFAS No. 149 that relate to SFAS No. 133
Implementation Issues that have been effective for fiscal quarters that began
prior to June 15, 2003, should continue to be applied in accordance with their
respective effective dates. In addition, certain provisions relating to forward
purchases or sales of when-issued securities or other securities that do not yet
exist, should be applied to existing contracts as well as new contracts entered
into after June 30, 2003. SFAS No. 149 should be applied prospectively. The
Company does not expect that the adoption of this Statement will have a material
impact on its results of operations and financial position.

In May 2003, the FASB issued Statement No. 150, "Accounting for Certain
Financial Instruments with Characteristics of both Liabilities and Equity" (SFAS
No. 150). The Statement establishes standards for how an issuer classifies and
measures certain financial instruments with characteristics of both liability
and equity. It requires that an issuer classify a financial instrument that is
within its scope as a liability (or an asset in some circumstances). Many of
these instruments were previously classified as equity. This Statement is
effective for financial instruments entered into or modified after May 31, 2003,
and otherwise effective at the beginning of the first interim period beginning
after June 15, 2003. The Company does not expect that the adoption of this
Statement will have a material impact on its results of operations and financial
position.

2. Analysis of revenue, operating income and reportable segments

The Company has disclosed segment information for the individual operating areas
of the business based on the way in which the business is managed and
controlled. The Company evaluates performance based on operating income or loss
before interest and income taxes.

For 2003 our reporting by segment has been expanded as set out below to provide
more information on the Corporate and International segments. The 2002
reportable segments have been restated on this basis.


9



2. Analysis of revenue, operating income and reportable segments (continued)



3 months to June 30, 2003 US International Biologics Corporate R&D Total
$'000 $'000 $'000 $'000 $'000 $'000
------- ------- ------- ------- ------- -------

Product sales 209,607 36,056 787 - - 246,450
Licensing and development 702 - - - - 702
Royalties 14 2,725 - 49,097 - 51,836
Intersegment revenues 6,434 - - 7,666 38,243 52,343
------- ------- ------- ------- ------- -------
216,757 38,781 787 56,763 38,243 351,331
Elimination of intersegment revenues (6,434) - - (7,666) (38,243) (52,343)
------- ------- ------- ------- ------- -------
Total revenues 210,323 38,781 787 49,097 - 298,988

Cost of product sales 26,887 11,450 656 - - 38,993
Research and development - - - - 50,097 50,097
Selling, general and administrative 65,941 19,084 2,364 15,205 - 102,594
Depreciation and amortization 8,728 2,379 1,121 859 - 13,087
------- ------- ------- ------- ------- -------
Total operating expenses 101,556 32,913 4,141 16,064 50,097 204,771
------- ------- ------- ------- ------- -------
Operating income/(loss) 108,767 5,868 (3,354) 33,033 (50,097) 94,217
------- ------- ------- ------- ------- -------


3 months to June 30, 2003 US International Biologics Corporate R&D Total
$'000 $'000 $'000 $'000 $'000 $'000
------- ------- ------- ------- ------- -------
Total assets 674,533 472,301 25,270 1,116,218 32,156 2,320,478
Long lived assets 250,647 260,590 23,985 244,788 33,884 813,894
Capital expenditure on long lived assets 7,189 26,879 100 2,635 2,685 39,488
------- ------- ------- ------- ------- -------





3 months to June 30, 2002 US International Biologics Corporate R&D Total
$'000 $'000 $'000 $'000 $'000 $'000
------- ------- ------- ------- ------- -------

Product sales 173,895 32,511 455 - - 206,861
Licensing and development 662 261 - - - 923
Royalties 7 1,280 - 39,225 - 40,512
Other revenues - (31) (181) - - (212)
Intersegment revenues 3,745 - - 2,278 3,566 9,589
------- ------- ------- ------- ------- -------
178,309 34,021 274 41,503 3,566 257,673
Elimination of intersegment revenues (3,745) - - (2,278) (3,566) (9,589)
------- ------- ------- ------- ------- -------
Total revenues 174,564 34,021 274 39,225 - 248,084

Cost of product sales 15,286 14,088 347 - - 29,721
Research and development - - - - 46,802 46,802
Selling, general and administrative 55,269 17,719 2,206 9,119 - 84,313
Depreciation and amortization 7,534 2,415 1,139 1,051 - 12,139
------- ------- ------- ------- ------- -------
Total operating expenses 78,089 34,222 3,692 10,170 46,802 172,975
------- ------- ------- ------- ------- -------
Operating income/(loss) 96,475 (201) (3,418) 29,055 (46,802) 75,109
------- ------- ------- ------- ------- -------



10



2. Analysis of revenue, operating income and reportable segments (continued)



6 months to June 30, 2003 US International Biologics Corporate R&D Total
$'000 $'000 $'000 $'000 $'000 $'000
------- ------- ------- ------- ------- -------

Product sales 429,570 71,747 1,486 - - 502,803
Licensing and development 1,096 - - - - 1,096
Royalties 14 4,924 - 94,661 - 99,599
Other revenues 7 - - - - 7
Intersegment revenues 12,286 - - 8,969 44,416 65,671
------- ------- ------- ------- ------- -------
442,973 76,671 1,486 103,630 44,416 669,176
Elimination of intersegment revenues (12,286) - - (8,969) (44,416) (65,671)
------- ------- ------- ------- ------- -------
Total revenues 430,687 76,671 1,486 94,661 - 603,505

Cost of product sales 53,259 23,096 1,283 - - 77,638
Research and development - - - - 104,695 104,695
Selling, general and administrative 135,626 38,241 4,616 34,532 - 213,015
Depreciation and amortization 16,053 4,744 2,270 1,681 - 24,748
------- ------- ------- ------- ------- -------
Total operating expenses 204,938 66,081 8,169 36,213 104,695 420,096
------- ------- ------- ------- ------- -------
Operating income/(loss) 225,749 10,590 (6,683) 58,448 (104,695) 183,409
------- ------- ------- ------- ------- -------





6 months to June 30, 2003 US International Biologics Corporate R&D Total
$'000 $'000 $'000 $'000 $'000 $'000
------- ------- ------- ------- ------- -------

Total assets 674,533 472,301 25,270 1,116,218 32,156 2,320,478
Long lived assets 250,647 260,590 23,985 244,788 33,884 813,894
Capital expenditure on long lived assets 9,404 27,501 184 4,438 13,049 54,576
------- ------- ------- ------- ------- -------


6 months to June 30, 2002 US International Biologics Corporate R&D Total
$'000 $'000 $'000 $'000 $'000 $'000
------- ------- ------- ------- ------- -------
Product sales 341,208 61,563 597 - - 403,368
Licensing and development 1,203 402 - - - 1,605
Royalties 221 3,040 - 76,827 - 80,088
Other revenues - 5 - - - 5
Intersegment revenues 9,008 - - 6,719 9,718 25,445
------- ------- ------- ------- ------- -------
351,640 65,010 597 83,546 9,718 510,511
Elimination of intersegment revenues (9,008) - - (6,719) (9,718) (25,445)
------- ------- ------- ------- ------- -------
Total revenues 342,632 65,010 597 76,827 - 485,066

Cost of product sales 29,975 24,007 759 - - 54,741
Research and development - - - - 96,531 96,531
Selling, general and administrative 109,583 32,118 3,969 20,410 - 166,080
Depreciation and amortization 13,479 4,698 2,185 1,950 - 22,312
------- ------- ------- ------- ------- -------
Total operating expenses 153,037 60,823 6,913 22,360 96,531 339,664
------- ------- ------- ------- ------- -------
Operating income/(loss) 189,595 4,187 (6,316) 54,467 (96,531) 145,402
------- ------- ------- ------- ------- -------


Included within the selling, general and administrative costs in the corporate
segment for the six months ended June 30, 2003 is $7.2 million in respect of the
former Chief Executive's departure.


11



3. Earnings per share

Basic earnings per share, is based upon the net income available to common
stockholders divided by the weighted-average number of common shares outstanding
during the period.

Diluted earnings per share is based upon net income available to common
stockholders divided by the weighted-average number of common shares outstanding
during the period and adjusted for the effect of all dilutive potential common
shares that were outstanding during the period.

The following table sets forth the computation of basic and diluted earnings per
share:



3 months to 3 months to 6 months to 6 months to
June 30, June 30, June 30, June 30,
2003 2002 2003 2002
$'000 $'000 $'000 $'000
------------- ------------- ------------- -------------

Numerator for basic earnings per share 65,485 59,307 128,551 116,109
Interest charged on convertible debt, net of tax 1,342 1,411 2,723 2,808
------------- ------------- ------------- -------------
Numerator for diluted earnings per share 66,827 60,718 131,274 118,917
------------- ------------- ------------- -------------





Weighted average number of shares: No. of shares No. of shares No. of shares No. of shares
------------- ------------- ------------- -------------

Basic 501,504,962 500,365,947 501,746,083 500,147,383
Effect of dilutive shares:
Stock options 2,030,976 2,357,078 1,470,870 3,910,105
Warrants - 1,144,179 - 1,144,179
Convertible debt 19,023,449 20,123,210 19,435,366 20,123,210
------------- ------------- ------------- -------------
Diluted 522,559,387 523,990,414 522,652,319 525,324,877
------------- ------------- ------------- -------------
Basic earnings per share 13.1c 11.9c 25.6c 23.2c
------------- ------------- ------------- -------------
Diluted earnings per share 12.8c 11.6c 25.1c 22.6c
------------- ------------- ------------- -------------


Warrants to purchase approximately 1.4 million common shares for the three
months and six months ended June 30, 2003 were antidilutive and were therefore
excluded from the computation of diluted earnings per share.

Stock options to purchase approximately 18.1 million and 18.0 million common
shares for the three months and six months ended June 30, 2003, respectively,
were antidilutive and were therefore excluded from the computation of diluted
earnings per share.


4. Employee stock plans

SFAS No. 123, "Accounting for Stock Based Compensation" (SFAS No. 123)
prescribes accounting and reporting standards for all stock-based compensation
plans, including employee stock options. As allowed by SFAS No. 123, the Company
has chosen to continue to account for stock based compensation using the
intrinsic value method prescribed in Accounting Principles Board Opinion No. 25,
"Accounting for Stock Issued to Employees" (APB No. 25), and related
interpretations.

Accordingly, compensation cost of stock options is measured as the excess, if
any, of the quoted market price of Shire's stock at the measurement date over
the option exercise price and is charged to operations over the vesting period.
For fixed plans, the measurement date is the grant date. For plans where the
measurement date occurs after the grant date, referred to as variable plans, the
compensation cost is re-measured on the basis of the current market value of
Shire's stock at the end of each reporting period. The Company recognizes
compensation expense for variable plans with performance conditions if
achievement of those conditions becomes probable.

12



4. Employee stock plans (continued)

At June 30, 2003, the Company had nine stock-based employee compensation plans,
which are described more fully in the annual consolidated financial statements.

The following table illustrates the effect on net income and earnings per share
if the Company had applied the fair value recognition provisions of SFAS No. 123
to stock-based employee compensation.



3 months to 3 months to 6 months to 6 months to
June 30, June 30, June 30, June 30,
2003 2002 2003 2002
$'000 $'000 $'000 $'000
----------- ----------- ----------- -----------

Net income, as reported 65,485 59,307 128,551 116,109
Add:
Stock-based employee compensation charge/(credit) included in
reported net income, net of related tax effects - 152 (24) (150)
Deduct:
Total stock-based employee compensation expense determined
under fair value based method for all awards (8,322) (6,040) (16,104) (11,375)
----------- ----------- ----------- -----------
Pro forma net income 57,163 53,419 112,423 104,584
----------- ----------- ----------- -----------

Earnings per share
Basic - as reported 13.1c 11.9c 25.6c 23.2c
Basic - pro forma 11.4c 10.7c 22.4c 20.9c
Diluted - as reported 12.8c 11.6c 25.1c 22.6c
Diluted - pro forma 11.3c 10.5c 22.1c 20.6c
----------- ----------- ----------- -----------


5. Accounts receivable, net

June 30, December 31,
2003 2002
$'000 $'000
---------- ----------
Trade receivables 188,315 130,210
Other receivables 6,593 8,187
---------- ----------
194,908 138,397
---------- ----------

Trade receivables is stated net of a provision for returns and discounts of
$13.4 million at June 30, 2003 and $8.5 million at December 31, 2002. Further
analysis can be seen below:

Provision for returns and discounts $'000
----------
As at January 1, 2003 8,536
Provision charged to income 13,023
Costs incurred/utilization (8,124)
----------
As at June 30, 2003 13,435
----------



13




6. Inventories, net

June 30, December 31,
2003 2002
$'000 $'000
---------- ----------
Finished goods 20,372 27,672
Work-in-process 19,460 13,716
Raw materials 14,573 7,828
---------- ----------
54,405 49,216
---------- ----------

The finished goods inventory is net of a reserve for slow moving and obsolete
stock of $7.0 million at June 30, 2003 and $3.0 million at December 31, 2002.

7. Investments

June 30, December 31,
2003 2002
$'000 $'000
---------- ----------
Investments in private companies 48,407 47,255
Investments in public companies 20,127 14,129
Equity method investments 10,583 10,578
---------- ----------
79,117 71,962
---------- ----------

During the six months ended June 30, 2003, the Company reviewed its existing
investment portfolio for other than temporary impairments. Based on changes in
estimates of the value from the prior year, the Company wrote off investments to
the value of $8.5 million. This has been reflected in other (expense)/income,
net, in the consolidated statement of operations.

8. Other intangible assets, net

June 30, December 31,
2003 2002
$'000 $'000
---------- ----------
Intellectual property rights acquired 427,548 397,807
Less: Accumulated amortization (113,650) (96,723)
---------- ----------
313,898 301,084
---------- ----------

Management estimates that the annual amortization charge in respect of
intangible fixed assets held at June 30, 2003 will be approximately $30.0
million for each of the five years to June 30, 2008. Estimated amortization
expense can be affected by various factors including future acquisitions and
disposals of product rights.

During the six months ended June 30, 2003, the Company reviewed its existing
product base. On completion of this exercise, management decided to cease
supporting certain products that were not considered to be core to the business
and to redirect certain investment toward other more profitable products.
Intangible assets associated with these products, namely product rights and
licenses were written down to their fair value, based on changes to the
estimated future net cash flows. This resulted in the recognition of an
impairment loss of $3.3 million, which has been reflected in selling, general
and administrative expenses in the consolidated statement of operations and the
segment disclosure ($3.3 million in the US segment).

9. Long-term debt, excluding current instalments

During the six months ended June 30, 2003 the Company repurchased $29.8 million
of the $400.0 million 2% guaranteed convertible notes due 2011, recording a gain
of $0.5 million which is reflected in other income. During the six months ended
June 30, 2002 the Company did not issue debt or make any other debt repayments.


14




10. Consolidated statement of changes in shareholders' equity



Accumulated
other
Exchangeable compre-
Common Exchangeable shares hensive Total
Common Stock shares No. of Additional (losses)/ shareholders'
Stock No. of Amount Shares paid-in Retained income equity
Amount shares $'000 000's capital earnings $'000 $'000
$'000 000's $'000 $'000
------- ------- ------- ------- ------- ------- ------- -------

As at January 1, 2003 40,051 484,344 272,523 5,874 1,027,499 274,524 (41,431) 1,573,166
Net income - - - - - 128,551 - 128,551
Foreign currency translation - - - - - - 56,255 56,255
Exchange of exchangeable
shares 8 102 (1,825) (34) 1,817 - - -
Options exercised 35 439 - - 2,219 - - 2,254
Stock option compensation - - - - (24) - - (24)
Share buy-back (625) (7,593) - - (51,506) - - (52,131)
Stamp duty on share buy-back - - - - (261) - - (261)
Unrealized loss on
investments - - - - - - 5,355 5,355
------- ------- ------- ------- ------- ------- ------- ---------
As at June 30, 2003 39,469 477,292 270,698 5,840 979,744 403,075 20,179 1,713,165
------- ------- ------- ------- ------- ------- ------- ---------







Each exchangeable share is exchangeable into 3 common shares.

11. Contingent liabilities

(a) Commitments
The Company has undertaken to subscribe to interests in companies and
partnerships for amounts totalling $44.3 million (December 31, 2002: $38.1
million). As at June 30, 2003 an amount of $32.4 million (December 31, 2002:
$26.4 million) has been subscribed, leaving an outstanding commitment of $11.9
million (December 31, 2002: $11.7 million).

The Company has a letter of credit with Fifth Third Bank to Allfirst Bank in the
amount of $11.5 million related to the bonds that financed the construction of
its US manufacturing facility.

The Company is a guarantor of various equipment leases.

The Company has $5.2 million of restricted cash as collaterol for one of the
equipment leases. In addition, the Company has $11.5 million of restricted cash
as collateral related to the letter of credit with Fifth Third Bank.

(b) FLUVIRAL
The Company signed a ten-year contract with the Government of Canada in 2001 to
assure a state of readiness in the case of an influenza pandemic (worldwide
epidemic) and to provide influenza vaccine for all Canadian citizens in such an
event. Under the contract, Shire Biologics will also supply the Government of
Canada with a substantial proportion of its annual influenza vaccine
requirements over the ten-year period. Subject to mutual agreement, the contract
can be renewed for a further period of between one and ten years from 2011.

The concept of a state of readiness against an influenza pandemic requires the
development of sufficient infrastructure and capacity in Canada to provide 100%
of domestic vaccine needs in the event of an influenza pandemic. Canada would
require 32 million doses of single-strain (monovalent) flu vaccine within a
production period of 16 weeks. Shire Biologics has therefore begun to expand its
production capacity in order to meet this objective within a five-year period.

Shire Biologics is committed to CAN$18 million (approximately $11.3 million) of
capital expenditure on immoveables for the purpose of achieving the level of
pandemic readiness required. In addition, a performance bond equal to 10% of the
minimum estimated contract value in any year, which for 2003/2004 will be
CAN$24.5 million (approximately $17.5 million), would become payable to the
Government of Canada if contracted penalty clauses were triggered.


15


11. Contingent liabilities (continued)

(c) Legal proceedings

(i) General
Shire accounts for litigation losses in accordance with SFAS No. 5, "Accounting
for Contingencies." (SFAS No. 5). Under SFAS No. 5, loss contingency provisions
are recorded for probable losses when management is able reasonably to estimate
the loss. Where the estimated loss lies within a range and no particular amount
within that range is a better estimate than any other amount the minimum amount
is recorded. In other cases management's best estimate of the loss is recorded.
These estimates are developed substantially earlier than the ultimate loss is
known, and the estimates are refined each accounting period, in light of
additional information being known. In instances where Shire is unable to
develop a best estimate of loss, no litigation loss is recorded at that time. As
information becomes known a loss provision is set up when a best estimate can be
made. The best estimates are reviewed quarterly and the estimates are changed
when expectations are revised. There have been no material changes in estimates
recognised related to Shire's litigation reserves, in any of the periods
presented.

(ii) Specific
There are various legal proceedings against the Company. Please see the
Company's Form 10-K for 2002, where these have been fully explained or referred
to. There are no material updates to these proceedings since the filing of the
10-K, subject as stated below. There is no assurance that the Company will be
successful in these proceedings and if it is not there may be a material impact
on the Company's results and financial position.

In May 2003, in the ADDERALL trade dress litigation with Barr Laboratories Inc.
(Barr), the United States Court of Appeals for the Third Circuit affirmed the
District Court's denial of Shire's request for a preliminary injunction.

16



ITEM 2. Management's Discussion and Analysis of Financial Condition and Results
of Operations

The following discussion should be read in conjunction with our consolidated
financial statements and related notes appearing elsewhere in this report.

Results of operations for the three months ended June 30, 2003 and 2002

Overview
The results for the three months ended June 30, 2002 have been restated to
reflect the disposal of our OTC business, which has been accounted for as a
discontinued operation.

Revenues from continuing operations for the three months ended June 30, 2003
increased by 21% to $299.0 million (Q2 2002: $248.1 million).

The Company recorded net income of $65.5 million; an increase of 10% compared to
the three months ended June 30, 2002. Diluted earnings per common share were
12.8 cents, or 38.4 cents per ADS, an increase of 10% over the three months
ended June 30, 2002.

Total revenues
Our revenues are primarily derived from sales of our pharmaceutical products and
royalties earned on products we have out-licensed to third parties to market on
our behalf. The following table provides an analysis of our total revenues by
source:

3 months to 3 months to
June 30, June 30,
2003 2002 change
$'000 $'000 %
---------- ---------- ----------
Product sales 246,450 206,861 +19
Licensing and development 702 923 -24
Royalties 51,836 40,512 +28
Other - (212) -
---------- ---------- ----------
Total 298,988 248,084 +21
---------- ---------- ----------

Product sales
For the three months ended June 30, 2003 product sales increased $39.6 million
to $246.5 million
(2002: $206.9 million) and represented 82% of total revenues. During the early
part of the second quarter of 2003, we experienced aggressive wholesaler
de-stocking, significantly beyond the stock-build of $15 million announced in
the three months ended March 31, 2003. This significant de-stocking below normal
levels was corrected later in the second quarter following the initiation of a
wholesaler promotional campaign intended to normalize inventory levels. The
management estimates that product revenues in the three months ended June 30,
2003 approximated prescription-based demand for the quarter except for sales of
ADDERALL ($5.0 million) and PROAMATINE ($5.0 million). ADDERALL benefited from a
promotional campaign intended to decrease inventories of short-dated product,
while PROAMATINE benefited from increased sales due to the timing of order flow.
The combined amount of revenues in excess of demand for the three months ended
June 30, 2003 was approximately $10.0 million, which in combination with the
wholesaler stocking reported in the three months ended March 31, 2003, is
expected to reverse prior to the year-end.


17



Product sales (continued)
The following table provides an analysis of our key product sales:

3 months to 3 months to Product
June 30, June 30, sales Prescription
2003 2002 growth growth
$'000 $'000 % %
---------- ---------- ---------- ----------
ADDERALL XR 102,429 75,821 +35% +62%
ADDERALL 19,191 28,321 -32% -59%
AGRYLIN 36,551 29,435 +24% +8%
PENTASA 24,754 21,479 +15% -3%
PROAMATINE 18,301 10,868 +68% +12%
CARBATROL 13,915 12,574 +11% +1%
CALCICHEW range 6,359 5,703 +12% n/a
Others 24,950 22,660 +10% n/a
---------- ---------- ----------
246,450 206,861 +19%
---------- ---------- ----------

The following discussion includes references to prescription and market share
data for our key products. The source of this data is IMS June 2003.

ADDERALL franchise
Total ADDERALL franchise sales for the three months ended June 30, 2003 were
$121.6 million, an increase of 17% over 2002 ($104.1 million). Over the same
period, total ADDERALL franchise prescriptions grew by approximately 16%,
despite the entry of generic versions of ADDERALL last year, as well as
increased competition within the ADHD market overall.

Sales of ADDERALL XR for the three months ended June 30, 2003 were $102.4
million, an increase of 35% over the three months ended June 30, 2002 ($75.8
million). ADDERALL XR prescriptions increased 62% between periods driven by
successful conversion of ADDERALL business to the improved ADDERALL XR
formulation and overall market growth. The difference between reported growth
and prescription growth is largely due to a strong second quarter in 2002 that
included launch stock related to new strengths of ADDERALL XR. Revenues of
ADDERALL XR in the three months ended June 30, 2003 were in line with wholesaler
buying patterns.

Increased competitor activity has had a positive impact on the US ADHD market
growth, which reached 18% for the three months ended June 30, 2003 over the
prior year period. Notwithstanding this increase in competition, ADHD physicians
have continued to recognize the strengths of the ADDERALL brand, which
maintained its leading position in the ADHD market with a 26% prescription share
during Q2 2003.

Sales of ADDERALL were $19.2 million for the three months ended June 30, 2003,
down 32% from 2002 ($28.3 million). Overall prescriptions were down
approximately 59% between periods. In the three months ended June 30, 2003, we
offered wholesalers short-dated product on a non-returnable basis. Management
estimates that this offer increased ADDERALL revenues by $5.0 million over
normal second quarter wholesaler buying patterns.

Details of the litigation with Barr relating to its extended release mixed
amphetamine salt product, which is the subject of a pending Abbreviated New Drug
Application (ANDA), are disclosed in Shire's 2002 Form 10-K.

CARBATROL
CARBATROL sales increased by $1.3 million or 11%, year over year, versus a 1%
increase in prescriptions. For the three months ended June 30, 2003 sales
benefited from a price increase implemented in April 2003. We believe that
wholesaler inventory levels are fully adjusted to reflect current demand levels.

Following recommencement of promotional efforts for the three months ended March
31, 2003, Shire has grown CARBATROL's share of the extended release
carbamazepine market from 36% in the second quarter of 2002 to 38% in the three
months ended June 30, 2003.


18



Product sales (continued)
CARBATROL (continued)
In August 2003 the Company received a Paragraph IV Notice from Nostrum
Pharmaceuticals, Inc. (Nostrum), alleging that Nostrum's 300mg extended release
carbamazepine formulation, the subject of a pending ANDA, does not infringe
Shire's two listed patents. The Company is reviewing this Notice. If the Company
does not bring suit or does not prevail in any such suit then Nostrum would be
able to market its product upon FDA approval of its ANDA application. The sales
of any generic versions of CARBATROL may have an adverse impact on the Company's
results and financial position.

AGRYLIN
AGRYLIN sales growth of 24% in the three months ended June 30, 2003 was
supported by 8% US prescription growth, and strong growth in sales from outside
the US. While revenues for the three months ended June 30, 2003 were in line
with underlying prescription demand, wholesaler inventories remain somewhat
above normal levels and we expect wholesaler de-stocking to adversely impact
sales trends in the second half of 2003.

AGRYLIN remains the only product specifically approved for essential
thrombocythemia in the US. The anticipated pediatric extension for AGRYLIN could
extend its orphan drug exclusivity from March 2004 to September 2004, after
which time it is expected to face generic competition. The expected launch of
XAGRID (which is the trade name of AGRYLIN used in the EU) will continue to
drive growth from markets outside the US.

PENTASA
The 15% growth in PENTASA sales revenue compared to the three months ended June
30, 2002, versus a 3% fall in prescription demand for the same period is largely
related to wholesaler stocking movements in the second quarter of 2002 and the
favourable impact of an April 2003 price increase. While revenues for the three
months ended June 30, 2003 were in line with underlying prescription demand,
wholesaler inventories remain somewhat above normal levels and we expect
wholesaler de-stocking to adversely impact sales trends in the second half of
2003.

Although its formal indication is for mild to moderately active ulcerative
colitis, PENTASA continues to see the majority of its use in Crohn's disease.

PROAMATINE
Supported by 12% prescription growth, the remainder of PROAMATINE's total 68%
growth during the three months ended June 30, 2003 is attributable to wholesaler
buying patterns. Management estimates that wholesalers stocked approximately
$5.0 million of product in excess of underlying prescription demand. The impact
of wholesaler de-stocking prior to the year-end and/or the onset of generic
competition could adversely impact comparative sales trends in the second half
of 2003.

While PROAMATINE grew its share of the PROAMATINE and fludrocortisone acetate
market from 24% in the three months ended June 30, 2002 to 27% in the three
months ended June 30, 2003, its Orphan Drug Status will expire in September
2003, allowing the entry of potential generic competition.

The following table presents our product sales by operating segment.

months to 3 months to
June 30, June 30,
2003 2002 change
$'000 $'000 %
---------- ---------- ----------
US 209,607 173,895 +21
International 36,056 32,511 +11
Biologics 787 455 +73
---------- ---------- ----------
Total product sales 246,450 206,861 +19
---------- ---------- ----------

Of our five reportable operating segments, only three generate revenues from the
sale of products.

Product sales in the US continue to represent a significant percentage of our
worldwide product sales, 85 per cent in the three months ended June 30, 2003
(2002: 84 per cent). Growth in International markets has been supported by the
acquisition of two specialty pharmaceutical products during 2002 in Europe,
SOLARAZE and ADEPT.


19



Royalties
Royalty revenue increased 28% to $51.8 million for the three months ended June
30, 2003 (2002: $40.5 million) as a result of strong sales and positive foreign
exchange movements. The following table provides an analysis of our royalty
income:



3 months ended June 30, 3 months to 3 months to Constant
June 30, June 30, Royalty exchange rate
2003 2002 growth growth
$'000 $'000 % %
---------- ---------- ---------- ----------

3TC 37,540 30,720 +22% +10%
ZEFFIX 5,721 4,510 +27% +15%
Others 8,575 5,282 +62% n/a
---------- ---------- ----------
Total 51,836 40,512 +28%
---------- ---------- ----------


For the products 3TC and ZEFFIX, treatments for HIV infection and chronic
hepatitis B respectively, Shire receives royalties from GSK on worldwide sales,
with the exception of Canada, where a commercialization partnership with GSK
exists.

The nucleoside analogue market for HIV has continued to exhibit solid growth in
recent months. This growth is supported by increases in the number of
individuals living with HIV, as well as reduced mortality due to more effective
treatment regimens.

With the recent introduction of only the second antiviral agent in the US for
hepatitis B infection, market dynamics in the US are expected to change. This
introduction is not expected to have a dramatic near term impact on royalties,
as the majority of ZEFFIX sales continue to be made in Asia-Pacific markets.

Royalty revenue is also received in respect of REMINYL from Johnson & Johnson,
and in respect of a number of hormone replacement therapy products from various
licensees.

REMINYL, available for the treatment of mild to moderately severe dementia of
the Alzheimer's type, is currently growing well in the Alzheimer's market, while
progress continues for other indications and formulations.

Cost of product sales
For the three months ended June 30, 2003, cost of product sales amounted to 16%
of product sales (2002: 14%). The increase over the prior year period is
primarily driven by the sales mix, in the three months ended June 30, 2003.

Research and development (R&D) expenses
R&D expenditure increased to $50.1 million in the three months ended June 30,
2003 (2002: $46.8 million), representing an increase of 7%. Expressed as a
percentage of total revenues, R&D expenditure for the quarter was 17% (2002:
19%). Phasing of projects and the timing of expenditure in relation to these
projects varies from quarter to quarter and therefore the ratio of R&D spend to
revenue varies accordingly.

Selling, general and administrative (SG&A) expenses
SG&A expenses increased from $96.3 million in the three months ended June 30,
2002 to $115.7 million in the three months ended June 30, 2003, an increase of
20%. Excluding depreciation and amortization, as a percentage of product sales,
these expenses were 42% (2002: 41%).

For the three months ended June 30, 2003 SG&A expenses included continued
additional promotional spend for ADDERALL XR in relation to sustained competitor
activity, as well as for the ongoing relaunch of CARBATROL. As the benefit of
this promotional spend is realized, this high level of spend is expected to
moderate in the final quarter of 2003.

The depreciation charge for the three months ended June 30, 2003 was $4.0
million, an increase of $0.7 million compared to 2002. Amortization charges were
$9.1 million, an increase of $0.3 million compared to 2002. The amortization
charge for the three months ended June 30, 2003 includes a product write-down of
$3.3 million (2002: $3.0 million).


20


Interest income and expense
For the three months ended June 30, 2003, the Company received interest income
of $4.3 million (2002: $4.8 million). Interest expense increased from $1.8
million in the three months ended June 30, 2002 to $2.7 million in 2003,
primarily relating to costs associated with partial buy-back of the convertible
notes.

Other (expense)/income, net
For the three months ended June 30, 2003, other expense totalled $3.7 million
(2002: $0.9 million). The expense is primarily attributable to investment
write-downs for other than temporary impairment of $4.5 million.

Income taxes for continuing operations
For the three months ended June 30, 2003 income taxes increased $4.2 million to
$25.5 million (2002: $21.3 million). Our effective tax rate was 28% for the
three months ended June 30, 2003 (2002: 27%). We have net deferred tax assets of
$58.9 million at June 30, 2003. Realization is dependent upon generating
sufficient taxable income to utilize such assets. Although realization of these
assets is not assured, management believes it is more likely than not that the
deferred tax assets will be realized.

Equity method investees
In the three months ended June 30, 2003 we received $0.9 million representing
our 50% share of earnings from our antiviral commercialization partnership with
GSK in Canada (2002: $1.9 million) and we incurred a loss of $2.1 million
representing our 50% share of the losses of our commercialization partnership
with Qualia Computing Inc (2002: $nil).

Discontinued operations
We completed the divestment of our OTC portfolio on December 27, 2002. These
products were originally acquired in 1999 as a result of our merger with Roberts
Pharmaceutical Corporation.

The OTC business contributed net income of $1.6 million for the three months
ended June 30, 2002.


Results of operations for the six months ended June 30, 2003 and 2002

Overview
The results for the six months ended June 30, 2002 have been restated to reflect
the disposal of our OTC business, which was accounted for as a discontinued
operation.

Revenues from continuing operations for the six months ended June 30, 2003
increased by 24% to $603.5 million (2002: $485.1 million).

The Company recorded net income of $128.6 million; an increase of 11% compared
to the six months ended June 30, 2002. Diluted earnings per common share were
25.1 cents, or 75.5 cents per ADS, an increase of 11% over the six months ended
June 30, 2002.

This result was after charging a cost of $7.2 million for pension top up
contributions and contractual termination costs in respect of the former Chief
Executive's departure.

Total revenues
Our revenues are primarily derived from sales of our pharmaceutical products and
royalties earned on products we have out-licensed to third parties to market on
our behalf. The following table provides an analysis of our total revenues by
source:
6 months to 6 months to
June 30, June 30,
2003 2002 change
$'000 $'000 %
---------- ---------- ----------
Product sales 502,803 403,368 +25
Licensing and development 1,096 1,605 -32
Royalties 99,599 80,088 +24
Other 7 5 +35
---------- ---------- ----------
Total 603,505 485,066 +24
---------- ---------- ----------


21


Product sales
For the six months ended June 30, 2003 product sales increased $99.4 million to
$502.8 million (2002: $403.4 million) and represented 83% of total revenues.
During the six months ended June 30, 2003 we experienced wholesaler stock-builds
on products such as PENTASA, AGRYLIN, PROAMATINE and ADDERALL estimated, in
aggregate, at $25 million. These wholesaler stock builds represent revenues in
excess of demand for the six months ended June 30, 2003 and are expected to
reverse out prior to the year-end.

Product sales for the six months ended June 30, 2002, included $17.0 million of
ADDERALL XR revenue deferred from the fourth quarter of 2001 in accordance with
Staff Accounting Bulletin 101 (SAB 101), together with $9.0 million wholesaler
stocking of the new 15mg and 25mg strengths of ADDERALL XR. This was in part,
offset by a destocking of ADDERALL due to the switch to ADDERALL XR and the
entry of generic competition.

The following table provides an analysis of our key product sales:

6 months to 6 months to Product
June 30, June 30, sales Prescription
2003 2002 growth growth
$'000 $'000 % %
---------- ---------- ---------- ----------
ADDERALL XR 217,592 137,696 +58% +86%
ADDERALL 38,090 74,491 -49% -72%
AGRYLIN 76,225 52,871 +44% +10%
PENTASA 54,473 39,026 +40% -2%
PROAMATINE 32,136 20,441 +57% +13%
CARBATROL 23,336 24,146 -3% -
CALCICHEW range 12,467 10,402 +20% n/a
Others 48,484 44,295 +9% n/a
---------- ---------- ----------
502,803 403,368 +25%
---------- ---------- ----------

The following discussion includes references to prescription and market share
data for our key products. The source of this data is IMS June 2003.

ADDERALL franchise
Total ADDERALL franchise sales in the six months ended June 30, 2003 were $255.7
million, an increase of 20% over 2002 ($212.2 million). Over the same period,
total ADDERALL franchise prescriptions grew by approximately 3%, despite the
entry of generic versions of ADDERALL last year, as well as increased
competition within the ADHD market overall.

For the six months ended June 30, 2003, the ADHD market grew 16% versus the
comparable period and the ADDERALL franchise maintained a 27% share of the
overall ADHD market.

Sales of ADDERALL XR in the six months ended June 30, 2003 were $217.6 million,
an increase of 58% over 2002 ($137.7 million). ADDERALL XR prescriptions
increased 86% between periods driven by successful conversion of ADDERALL
business to the ADDERALL XR formulation and overall market growth. ADDERALL XR
revenues for the six months ended June 30, 2002 included $17 million related to
the recognition in the three months ended March 31, 2002 of launch stock
revenues deferred in accordance with SAB 101 and $9 million related to the June
2002 launch of additional ADDERALL XR strengths. Absent these items, revenue
growth between periods was in line with underlying prescription demand together
with the benefit of annual price increases.

Sales of ADDERALL were $38.1 million in the six months ended June 30, 2003, down
49% from 2002 ($74.5 million). Overall prescriptions were down approximately 72%
between comparative periods. In the six months ended June 30, 2003, we offered
wholesalers short-dated product inventory on a non-returnable basis. Management
estimates that this offer increased ADDERALL revenues by $5.0 million over
normal wholesaler buying patterns for the period.

For the six months ended June 30, 2002, we experienced de-stocking of ADDERALL
as wholesalers reduced inventory levels subsequent to the switch to ADDERALL XR
and the entry of generic competition. Absent these items, the revenue decrease
between periods was in line with underlying prescription demand, offset in part
by the benefit of annual price increases and lower Medicaid utilization in 2003.

22


Product sales (continued)
ADDERALL franchise (continued)
Details of the litigation with Barr relating to its extended release mixed
amphetamine salt product, which is the subject of a pending ANDA, are disclosed
in Shire's 2002 Form 10-K.

CARBATROL
Sales of CARBATROL in the six months ended June 30, 2003 were $23.3 million, a
decrease of 3% over 2002 ($24.1 million). Prescription volumes have remained
constant between periods. The benefit of an April 2003 price increase was offset
by minor movements in wholesaler inventory levels between periods.

In August 2003 the Company received a Paragraph IV Notice from Nostrum, alleging
that Nostrum's 300mg extended release carbamazepine formulation, the subject of
a pending ANDA, does not infringe Shire's two listed patents. The Company is
reviewing this notice. If the Company does not bring suit or does not prevail in
any such suit then Nostrum would be able to market its product upon FDA approval
of its ANDA application. The sales of any generic versions of CARBATROL may have
an adverse impact on the Company's results and financial position.

AGRYLIN

Sales of AGRYLIN in the six months ended June 30, 2003 were $76.2 million, an
increase of 44% over 2002 ($52.9 million). The sales growth was supported by 10%
US prescription growth, strong growth in sales from outside the US and moderate
wholesaler stocking during the period in excess of underlying prescription
demand (approximately $5.0 million). At June 30, 2003, these wholesaler
inventories remain somewhat above normal levels and the Company expects
wholesaler de-stocking to adversely impact sales trends in the second half of
2003.

AGRYLIN remains the only product specifically approved for essential
thrombocythemia in the US. The anticipated pediatric extension for AGRYLIN could
extend its orphan drug exclusivity from March 2004 to September 2004, after
which time it is expected to face generic competition. The expected launch of
XAGRID (which is the trade name of AGRYLIN used in the EU) will continue to
drive growth from markets outside the US.

PENTASA
Sales of PENTASA in the six months ended June 30, 2003 were $54.5 million, an
increase of 40% over 2002 ($39.0 million). The growth in sales revenue, versus a
2% fall in prescription demand for the same period, is largely related to the
benefit achieved from annual price increases and moderate wholersaler stocking
during the period in excess of underlying prescription demand (approximately $8
million). At June 30, 2003 wholesaler inventories remain somewhat above normal
levels and the Company expects wholesaler de-stocking to adversely impact sales
trends in the second half of 2003.

PROAMATINE
Sales of PROAMATINE in the six months ended June 30, 2003 were $32.1 million, an
increase of 57% over 2002 ($20.4 million). Supported by 13% prescription growth,
the remainder of PROAMATINE's total growth is attributable to the benefit
achieved from annual price increases and moderate wholesaler stocking in excess
of underlying prescription demand (approximately $7 million). The impact of
wholesaler de-stocking prior to year-end and/or the onset of generic competition
could adversely impact comparative sales trends in the second half of 2003.

PROAMATINE grew its share of the PROAMATINE and fludrocortisone acetate market
from 24% in the six months ended June 30, 2002 to 26% in 2003.


The following table presents our product sales by operating segment.

6 months to 6 months to
June 30, June 30,
2003 2002 change
$'000 $'000 %
---------- ---------- ----------
US 429,570 341,208 +26
International 71,747 61,563 +17
Biologics 1,486 597 +149
---------- ---------- ----------
Total product sales 502,803 403,368 +25
---------- ---------- ----------

23


Product sales (continued)
Of our five reportable operating segments, only three generate revenues from the
sale of products.

Product sales in the US continue to represent a significant percentage of our
worldwide product sales, 85% in the six months ended June 30, 2003 (2002: 85%).
Growth in International markets has been supported by the acquisition of two
specialty pharmaceutical products during 2002 in Europe, SOLARAZE and ADEPT.

Royalties
Royalties were $99.6 million in the six months ended June 30, 2003, an increase
of 24% from the six months ended June 30, 2002. The following table provides an
analysis of our royalty income:

6 months to 6 months to
June 30, June 30,
2003 2002 change
$'000 $'000 %
---------- ---------- ----------
3TC 71,679 61,356 +17%
ZEFFIX 12,120 9,803 +24%
Others 15,800 8,929 +77%
---------- ---------- ----------
Total 99,599 80,088 +24%
---------- ---------- ----------

For the products 3TC and ZEFFIX, treatments for HIV infection and chronic
hepatitis B respectively, Shire receives royalties from GSK on worldwide sales,
with the exception of Canada, where a commercialization partnership with GSK
exists.

The nucleoside analogue market for HIV has continued to exhibit solid growth in
recent months. This growth is supported by increases in the number of
individuals living with HIV, as well as reduced mortality due to more effective
treatment regimens.

With the recent introduction of only the second antiviral agent in the US for
hepatitis B infection, market dynamics in the US are expected to change. This
introduction is not expected to have a dramatic near term impact on royalties,
as the majority of ZEFFIX sales continue to be made in Asia-Pacific markets.

Royalty revenue is also received in respect of REMINYL from Johnson & Johnson,
and in respect of a number of hormone replacement therapy products from various
licensees.

REMINYL, available for the treatment of mild to moderately severe dementia of
the Alzheimer's type, is currently growing well in the Alzheimer's market, while
progress continues for other indications and formulations.

Cost of product sales
For the six months ended June 30, 2003, cost of product sales amounted to 15% of
product sales (2002: 14%). This increase is driven by the sales mix, together
with revenue costs associated with improving internal and external production
facility capabilities.

Research and development expenses
R&D expenditure increased to $104.7 million in the six months ended June 30,
2003, from $96.5 million in 2002, representing an increase of 8%. Expressed as a
percentage of total revenues, research and development expenditure was 17%
(2002: 20%). Phasing of projects and the timing of expenditure in relation to
those projects varies throughout the year and therefore the ratio of R&D spend
to revenue varies accordingly.

Selling, general and administrative expenses
SG&A expenses increased from $188.3 million in the six months ended June 30,
2002 to $237.8 million in the six months ended June 30, 2003, an increase of
21%. Excluding depreciation and amortization, as a percentage of product sales,
these expenses were 42% for the six months ended June 30, 2003 (2002: 41%).

Expenditure in the six months ended June 30, 2003 included continued additional
promotional spend for ADDERALL XR in relation to sustained competitor activity,
as well as for the ongoing relaunch of CARBATROL. As the benefit of this
promotional spend is realized, this high level of spend is expected to moderate
over the remainder of the year.

24


Selling, general and administrative expenses (continued)
Selling, general and administrative expenditure in the six months ended June 30,
2003 also included pension top-up contributions and contractual termination
costs for our former Chief Executive totalling $7.2 million.

The depreciation charge for the six months ended June 30, 2003 was $7.6 million,
an increase of $1.3 million compared to the first half of 2002. Amortization
charges were $17.1 million, an increase of $1.1 million compared to the six
months ended June 30, 2002. The 2003 amortization charge includes a product
write-down of $3.3 million (2002: $4.5 million).

Interest income and expense
For the six months ended June 30, 2003, the Company received interest income of
$9.4 million (2002: $9.6 million). Interest expense increased from $3.8 million
to $5.3 million, primarily relating to costs associated with partial buy back of
the convertible notes.

Other (expense)/income, net
For the six months ended June 30, 2003, other expense totalled $7.3 million
(2002: income of $0.2 million). The expense is primarily attributable to
investment write-downs for other than temporary impairment of $8.5 million
(2002: $2.5 million).

Income taxes for continuing operations
For the six months ended June 30, 2003 income taxes increased $8.9 million to
$50.0 million from $41.1 million for the six months ended June 30, 2002. Our
effective tax rate was 28% for the six months ended June 30, 2003 (2002: 27%).
We have net deferred tax assets of $58.9 million at June 30, 2003. Realization
is dependent upon generating sufficient taxable income to utilize such assets.
Although realization of these assets is not assured, management believes it is
more likely than not that the deferred tax assets will be realized.

Equity method investees
We received $1.5 million, representing our 50 per cent share of results from our
antiviral commercialization partnership with GSK in Canada (2002: income $2.6
million), and we incurred a loss of $3.2 million representing our 50 per cent
share of the losses of our commercialization partnership with Qualia Computing
Inc (2002: nil).

Discontinued operations
We completed the divestment of our OTC portfolio on December 27, 2002. These
products were originally acquired in 1999 as a result of our merger with Roberts
Pharmaceutical Corporation.

The OTC business contributed net income of $3.2 million for the six months ended
June 30, 2002.

Liquidity and financial condition
Our funding requirements depend on a number of factors, including product
development programs, business and product acquisitions, the level of resources
required for the expansion of marketing capabilities as the product base
expands, increased investment in accounts receivable and inventory which may
arise as sales levels increase, competitive and technological developments, the
timing and cost of obtaining required regulatory approvals for new products and
the continuing revenues generated from sales of our key products.

At June 30, 2003 and December 31, 2002, net cash funds were as follows:

June 30, December 31,
2003 2002
$'000 $'000
---------- ----------
Cash and cash equivalents 967,480 897,718
Marketable securities 217,677 316,126
Debt (378,616) (408,190)
---------- ----------
Net cash 806,541 805,654
---------- ----------

Cash and cash equivalents and marketable securities
As of June 30, 2003 we had cash, cash equivalents and marketable securities of
$1,185.2 million, a decrease of $28.6 million from $1,213.8 million at December
31, 2002. Our marketable securities consist of money market fund balances and
investment grade securities.

25


Liquidity and financial condition (continued)
Operating cashflow funds
Net cash provided by continuing operating activities for the six months ended
June 30, 2003 was $87.3 million compared to $111.8 million for the six months
ended June 30, 2002.

Investing activities provided $43.9 million for the six months ended June 30,
2003. This was due to the combined effects of an inflow of $98.4 million arising
due to the reduction of short-term deposits, and outflows in respect of net
capital expenditure on long-term investments and fixed assets of $54.5 million.

Investing activities provided $470.8 million for the six months ended June 30,
2002. This was due to the combined effects of an inflow of $498.0 million
arising due to the reduction of short-term deposits, and outflows in respect of
net capital expenditure on long-term investments and fixed assets of $27.2
million.

Financing activities for the six months ended June 30, 2003, which totalled an
$80.0 million outflow, included $52.4 million paid for redemption of common
stock, $2.3 million received from the exercise of employee stock options and
repayments of long-term debt of $29.9 million.

Financing activities for the six months ended June 30, 2002, which totalled a
$1.0 million inflow, included $3.6 million received from the exercise of
employee stock options and repayments of long-term debt of $2.6 million.

Debt
Our total borrowings as of June 30, 2003 were $378.6 million (December 31, 2002:
$408.2 million). The main component of our borrowings is $370.2 million
(December 31, 2002: $400.0 million) in guaranteed convertible loan notes due
2011. During the six months ended June 30, 2003 the Company repurchased $29.8
million of the convertible loan notes.

Capital expenditure
Capital expenditure on tangible fixed assets for the six months ended June 30,
2003 was $27.6 million, which includes the purchase of additional office
accommodation at the Group headquarters in Basingstoke, UK, together with $6.5
million for construction works at the Shire Manufacturing plant in Maryland,
USA. Other capital expenditure related to the purchase of long-term investments
in Canada ($1.5 million) and intangible assets in Europe ($25.5 million).

Capital expenditure on tangible fixed assets for the six months ended June 30,
2002 was $7.6 million, which primarily related to laboratory and computer
equipment purchased across the Group. Other capital expenditure related to the
purchase of long-term investments ($1.0 million) and intangible assets ($18.5
million).

Recent developments
On July 31, 2003 Shire announced its intention to spin off its vaccines business
together with its decision to close its early stage research (lead optimization)
unit. These announcements were made as a result of a strategic review.

Shire anticipates concluding the spin off of the vaccines business by June 30,
2004. In the first six months of 2003, this business had an operating loss of
$14.5 million including R&D expenditure of $7.8 million.

The closure of lead optimization will result in the loss of approximately 120
jobs. A re-structuring provision of approximately $12.0 million is anticipated.
Re-structuring costs, net of savings, for the full year 2003 are estimated to be
approximately $7.0 million, with the major element being non-cash asset
write-downs.

Critical accounting policies
The preparation of consolidated financial statements under generally accepted
accounting principles requires us to make certain estimates and judgments that
affect reported amounts of assets, liabilities, revenues, expenses and
disclosures in our financial statements. Critical accounting policies are those
that require the most significant, complex or subjective judgments, which are
often as a result of the need to make estimates on matters that are inherently
uncertain. Our critical accounting policies are those in relation to litigation,
valuation of intangible assets, valuation of fixed asset investments, sales
deductions, income taxes and sales coupons.


26



Critical accounting policies (continued)
Litigation
Shire accounts for litigation losses in accordance with Statement of Financial
Accounting Standards (SFAS) No. 5, "Accounting for Contingencies" (SFAS No. 5).
Under SFAS No. 5, loss contingency provisions are recorded for probable losses
when management is able to reasonably estimate the loss. Where the estimated
loss lies within a range and no particular amount within that range is a better
estimate than any other amount the minimum amount is recorded. In other cases
management's best estimate of the loss is recorded. These estimates are
developed substantially earlier than the ultimate loss is known, and the
estimates are refined each accounting period, in light of additional information
being known. In instances where Shire is unable to develop a best estimate of
loss, no litigation loss is recorded at that time. As information becomes known
a loss provision is set up when a best estimate can be made. The best estimates
are reviewed quarterly and the estimates are changed when expectations are
revised. Any outcome upon settlement that deviates from Shire's best estimate
may result in an additional expense in a future accounting period. There have
been no material changes in estimates recognized related to Shire's litigation
reserves, in any of the periods presented.

Valuation of Intangible Assets
Shire has acquired and continues to acquire significant intangible assets that
Shire records at acquisition cost. As at June 30, 2003 the carrying value of
such intangibles was $313.9 million, which primarily related to the AGRYLIN,
CARBATROL, COLAZIDE, ETHMOZINE, FARESTON, INDURGAN, METHYPATCH, PROAMATINE,
PENTASA and SOLARAZE products. Those assets which do not yet have a defined
revenue stream and for which there are no alternative uses are expensed upon
acquisition as acquired in-process research and development, and those that do
have a defined revenue stream (namely commercial products or rights to products
awaiting final regulatory approval) are capitalized and amortized over their
estimated useful life.

Management's estimate of the useful life considers, interalia, the following
factors: the expected use of the asset by the entity; any legal, regulatory, or
contractual provisions that may limit the useful life and the effects of demand,
competition, and other economic factors (such as the stability of the industry,
known technological advances, legislative action that results in an uncertain or
changing regulatory environment, and expected changes in distribution channels).

There is a high occurrence of transactions involving the transfer of intangible
assets between companies in the health care field, and valuations are usually
based on a discounted cash flow analysis. Shire uses a discounted cash flow
model to value intangible assets acquired and for the assessment of impairment.
The discounted cash flow model requires assumptions about the timing and amount
of future cash inflows and outflows, risk, the cost of capital, and terminal
values. Each of these factors can significantly affect the value of the
intangible asset. Shire engages independent valuation experts who review Shire's
critical assumptions for significant acquisitions of intangibles. Shire reviews
intangible assets for impairment periodically using an undiscounted net cash
flows approach whenever events or circumstances suggest that the carrying value
of the intangible asset is not recoverable. If the undiscounted cash flows of an
intangible asset are less than its carrying value, the intangible asset is
written down to its estimated discounted cash flow value. Where cash flows
cannot be identified for an individual asset, the review is applied at the
lowest group level for which cash flows are identifiable.

In accordance with Statement of Financial Accounting Standards (SFAS) No. 142,
"Accounting for Goodwill and Other Intangible Assets" (SFAS No. 142), adopted on
January 1, 2002, Shire assesses the recoverability of the carrying value of its
goodwill and other intangible assets with indefinite useful lives at least
annually or whenever events or changes in circumstances indicate that the
carrying amount of the asset may not be fully recoverable. Recoverability of
goodwill is measured at the reporting unit level based on a two-step approach.
First, the carrying amount of the reporting unit is compared to the fair value
as estimated by the future net discounted cash flows expected to be generated by
the reporting unit. To the extent that the carrying value of the reporting unit
exceeds the fair value of the reporting unit, a second step is performed,
wherein the reporting unit's assets and liabilities are fair valued. The implied
fair value of goodwill is calculated as the fair value of the reporting unit in
excess of the fair value of all non-goodwill assets and liabilities allocated to
the reporting unit. To the extent that the reporting unit's carrying value of
goodwill exceeds its implied fair value, impairment exists and must be
recognized.

A prolonged general economic downturn and, specifically, competitive pricing
pressure, could create an imbalance of industry supply and demand, or otherwise
diminish volumes or profits. Such events, combined with changes in interest
rates, could adversely affect our estimates of future net cash flows to be
generated by our long-lived assets. Consequently, it is possible that our future
operating results could be materially and adversely affected by additional
impairment charges related to the recoverability of our long-lived assets.
During the six months ended June 30, 2003 changes to the estimated future net
cash flows from certain products resulted in the impairment of $3.3 million
(2002: $4.5 million) of intangible assets. These estimated net cash flows
changed as a result of strategic business decisions


27



by Shire that resulted in the redirection of resources away from products that
were no longer believed to be core to its business and to products that Shire
believed to be more profitable and in line with its strategic direction.

Critical accounting policies (continued)
Valuation of Fixed Asset Investments
The Company has certain investments in equity securities. All equity
investments, where Shire does not have the ability to exercise significant
influence and where the equity securities are not marketable, are accounted for
under the cost method. At June 30, 2003 the carrying value of investments
accounted for under the cost method was $79.1 million. Under the cost method,
investments in private companies are carried at cost, less provisions for other
than temporary impairment in value. For public companies, the Company classifies
its equity investments as available-for-sale and, accordingly, records these
investments at their fair values with unrealized gains and losses included in
"Accumulated other comprehensive loss", net of any related tax effect. Shire
periodically reviews its fixed asset investments for other than temporary
impairments whenever certain events or circumstances suggest that the carrying
value of an investment exceeds the fair market value of the investment.
Indicators of other than temporary impairments include:

o the market value of a quoted investment being below the carrying value
of the investment for an extended period;
o adverse news flow for private company investments in relation to the
progress of scientific technology/development of compounds;
o recent stock issuances at a price below the investment price.

If the fair value appears to be below the carrying value we consider all
available evidence in assessing whether there is an other than temporary
impairment. This evidence would include:

o positive progress in the issuer's scientific technology/ development
of compounds;
o ongoing activity in collaborations with the issuer;
o a lack of other substantial company-specific adverse events causing a
decline in value;
o analysis and valuation of comparable companies; and
o the overall financial condition of the issuer.

In instances where our review indicates that there is an other than temporary
permanent impairment, Shire writes down the investment to the then fair value of
the investment, recording an impairment charge in the consolidated statement of
operations. The determination of the fair value of private company investments
together with the determination of whether an unrealized loss is permanent
requires significant judgment and can have a material impact on the reported
results. During the six months ended June 30, 2003, Shire wrote off investments
of $8.5 million based on changes in its estimates of the carrying value at
December 31, 2002. During the six months ended June 30, 2002, Shire wrote off
investments of $2.5 million.

Sales Deductions
Sales deductions primarily consist of statutory rebates to state Medicaid
agencies, contractual rebates with health-maintenance organizations (HMOs),
product returns, and trade discounts. Statutory rebates to state Medicaid
agencies and contractual rebates with HMOs are based on price differentials
between a base price and the selling price. As a result, the rebates increase as
a percentage of the selling price over the life of the product. Provision for
rebates are recorded as reductions to revenue in the same period as the related
sales with estimates of future utilization derived from historical trends.
Provisions for product returns and trade discounts to customers are recorded as
reductions to revenue in the same period as the related sales with estimates
based upon:

o past activity levels;
o the duration of time in the processing of deductions; and
o other factors such as the launch of a new drug and other factors, such
as a loss of exclusivity and new competition.

Where such factors are relevant, Shire develops reserves for returns based on
wholesaler customer channel checks for slow-moving product and a separate
management review of estimated pipeline inventories, by product.

Shire accepts customer returns in the following circumstances: a) expiration of
product, or b) product damaged while in the possession of Shire, or c) specific
sales terms, at product launch, that allow for unconditional return of product
(guaranteed sales). Customer return periods range from one to twenty four months
with an average return period of six months.


28



Critical accounting policies (continued)
Sales Deductions (continued)
To the extent that Shire is unable to estimate returns, recognition of revenue
is deferred until either the product is sold to a patient or until Shire
receives payment from the wholesaler. In addition, Shire monitors the level of
product in the customer pipeline, based on estimated prescription demand, and
limits the amount of product shipped to a customer when there appears to be an
amount in excess of such demand at that customer. The practice of monitoring
inventory levels allows Shire to more accurately predict customer returns.

The actual experience and the level of these deductions to revenue may deviate
from the estimate. Shire revises its estimates every period and may be required
to adjust the estimate in a subsequent period. There have been no material
adjustments to the estimates recognized related to Shire's reserves for sales
rebates or returns, in any of the periods presented.

Income Taxes
Shire operates in numerous countries where its income tax returns are subject to
audits and adjustments. Because Shire operates globally, the nature of the audit
items are often very complex, and the objectives of the government auditors can
result in a tax on the same income in more than one country. The Company employs
internal and external tax professionals to minimize audit adjustment amounts
where possible.

The Company also has significant deferred assets due to net operating losses
(NOLs) in Canada and other countries. The realization of these assets is not
assured and is dependent on the generation of sufficient taxable income in the
future. Management has exercised judgment in determining the extent of the
realization of these losses based upon estimates of future taxable income in the
various jurisdictions in which these NOLs exist. In the six months ended June
30, 2002 the deferred tax asset was reduced by $3.0 million, as management
considered it unlikely that sufficient taxable profits would arise to utilize
certain NOLs. In the six months ended June 30, 2003 the deferred tax asset was
increased by $15.0 million, as a consequence of tax planning strategies intended
to generate future taxable income to utilize certain NOLs.

Where there is an expectation that on the balance of probabilities there will
not be sufficient taxable profits to utilize NOLs a valuation allowance has been
made against these deferred tax assets. If actual events differ from
management's estimates, or to the extent that these estimates are adjusted in
the future, any changes to the valuation allowance could materially impact our
financial position and results of operations. Due to the changes in estimates of
Shire's ability to utilize NOLs in the future, Shire released valuation
allowances of $2.0 million in the six months ended June 30, 2002. In the six
months ended June 30, 2003, as a consequence of tax planning strategies intended
to generate future taxable income to utilize certain NOLs, Shire released
valuation allowances on certain deferred tax assets to the value of $3.0 million
and recorded additional valuation allowances on other deferred tax assets of
$6.3 million.

At June 30, 2003 the Company had gross deferred tax assets of $228.9 million and
had recorded a valuation allowance of $142.8 million against this amount.

Coupons
Sales allowances related to a promotion are recorded in the period in which the
Company distributes the coupon. During the six months ended June 30, 2003, the
Company distributed 2.1 million coupons. Sales allowances are calculated at
estimated redemption rates. Redemption rates vary based upon the responsiveness
of the different target audiences, method of distribution, and currently range
from 1.5% to 12%. The Company's current reimbursement for each prescription
averages $70 and each coupon has a twelve month expiration from date of
issuance. The actual redemption rates and the average reimbursement per
prescription may deviate from the estimates made. Shire revises its estimates
every period and may be required to adjust the estimate in a subsequent period.
There have been no material adjustments to the estimates recognized related to
Shire's reserves for coupons, in any period in which coupons were in issuance.


29



Accounting Pronouncements adopted during the period
In November 2002, the FASB issued Interpretation Number 45, "Guarantor's
Accounting and Disclosure Requirements for Guarantees, Including Indirect
Guarantees of Indebtedness of Others" (FIN 45). This interpretation requires
certain disclosures to be made by a guarantor in its interim and annual
financial statements about its obligations under certain guarantees that it has
issued. It also requires a guarantor to recognize, at the inception of a
guarantee, a liability for the fair value of the obligation undertaken in
issuing the guarantee. The disclosure requirements of FIN 45 are effective for
interim and annual periods after December 15, 2002 and we have adopted these
requirements for the six month period ended June 30, 2003. The initial
recognition and initial measurement requirements of FIN 45 are effective
prospectively for guarantees issued or modified after December 31, 2002. The
adoption of this Statement did not have an impact on the Group's financial
statements.

In June 2001, the FASB issued SFAS No. 143, "Accounting for Asset Retirement
Obligations" (SFAS No. 143). SFAS No. 143 requires that the fair value of a
liability for asset retirement obligations be recognized in the period in which
it is incurred if a reasonable estimate of the fair value can be made. The
associated asset retirement costs are capitalized as part of the carrying amount
of the related long-lived asset. SFAS No. 143 is effective for financial
statements issued for fiscal years beginning after June 15, 2002. The Company
adopted SFAS No. 143 on January 1, 2003 and there was no impact on the Group's
financial statements.

On January 1, 2003, the Company adopted FASB Statement No. 146, "Accounting for
Costs Associated with Exit or Disposal Activities", which requires companies to
recognize a liability for costs associated with exit or disposal activities when
they are incurred, rather than at the date of commitment to an exit plan or
disposal plan. The adoption did not have an impact on the Company's consolidated
financial position or results of operations.

New Accounting Pronouncements
In January 2003, the FASB issued FIN No. 46, "Consolidation of Variable Interest
Entities, an Interpretation of APB No. 51" (FIN 46). This interpretation
requires certain variable interest entities to be consolidated by the primary
beneficiary of the entity if the equity investors in the entity do not have the
characteristics of a controlling financial interest or do not have sufficient
equity at risk for the entity to finance its activities without additional
subordinated financial support from other parties. FIN 46 is effective for all
new variable interest entities created or acquired after January 31, 2003, of
which, within the Company, there are none. For variable interest entities
created or acquired prior to February 1, 2003, the provisions of FIN 46 must be
applied for the first interim or annual period beginning after June 15, 2003.
The Company is currently evaluating the effect the adoption of FIN 46 will have
on its existing operations.

In April 2003, the FASB issued Statement No. 149, "Amendment of SFAS No. 133 on
Derivative Instruments and Hedging Activities" (SFAS No. 149). The Statement
amends and clarifies accounting for derivative instruments, including certain
derivative instruments embedded in other contracts, and for hedging activities
under SFAS No. 133. In particular, it (1) clarifies under what circumstances a
contract with an initial net investment meets the characteristic of a derivative
as discussed in SFAS No. 133, (2) clarifies when a derivative contains a
financing component and (3) amends certain other existing pronouncements.

SFAS No. 149 is effective for contracts entered into or modified after June 30,
2003, except as stated below, and for hedging relationships designated after
June 30, 2003. The provisions of SFAS No. 149 that relate to SFAS No. 133
Implementation Issues that have been effective for fiscal quarters that began
prior to June 15, 2003, should continue to be applied in accordance with their
respective effective dates. In addition, certain provisions relating to forward
purchases or sales of when-issued securities or other securities that do not yet
exist, should be applied to existing contracts as well as new contracts entered
into after June 30, 2003. SFAS No. 149 should be applied prospectively. The
Company does not expect that the adoption of this Statement will have a material
impact on its results of operations and financial position.

In May 2003, the FASB issued Statement No. 150, "Accounting for Certain
Financial Instruments with Characteristics of both Liabilities and Equity" (SFAS
No. 150). The Statement establishes standards for how an issuer classifies and
measures certain financial instruments with characteristics of both liability
and equity. It requires that an issuer classify a financial instrument that is
within its scope as a liability (or an asset in some circumstances). Many of
these instruments were previously classified as equity. This Statement is
effective for financial instruments entered into or modified after May 31, 2003,
and otherwise effective at the beginning of the first interim period beginning
after June 15, 2003. The Company does not expect that the adoption of this
Statement will have a material impact on its results of operations and financial
position.



30



ITEM 3. Qualitative and Quantitative Disclosures about Market Risk

There have been no material changes in the Group's market risk exposure since
December 31, 2002. Item 7A of the Group's Annual Report on Form 10-K for the
year ended December 31, 2002 contains a detailed discussion of the Group's
market risk exposure in relation to interest rate market risk and foreign
exchange market risk.

ITEM 4. Controls and procedures

Evaluation of Disclosure Controls and Procedures
As of the end of the period covered by this report, an evaluation (the
"Evaluation") was carried out, under the supervision and with the participation
of our management, including our Chief Executive and our Group Finance Director,
of the effectiveness of the design and operation of our disclosure controls (the
"Disclosure Controls").

Disclosure Controls are controls and other procedures that are designed to
ensure that information required to be disclosed by us in the reports that we
file or submit under the Securities Exchange Act of 1934 is recorded, processed,
summarized and reported within the time periods specified in the Securities and
Exchange Commission's rules and forms. Disclosure controls and procedures
include, without limitation, controls and procedures designed to ensure that
information required to be disclosed by us in the reports that we file or submit
under the Exchange Act is accumulated and communicated to our management,
including our Chief Executive Officer and Group Finance Director, as appropriate
to allow timely decisions regarding required disclosure.

Based upon the Evaluation, the Chief Executive and the Group Finance Director
concluded that, subject to the limitations noted below, our Disclosure Controls
are effective to timely alert management to material information relating to the
Company during the period when periodic reports are being prepared.

Changes in Internal Controls
There has been no change in the Company's internal control over financial
reporting that has occurred during our most recent fiscal quarter that has
materially affected, or is reasonably likely to materially affect, our internal
control over financial reporting.

Limitations on the Effectiveness of Controls
Our management, including our Chief Executive and our Group Finance Director,
does not expect that our Disclosure Controls or our internal control over
financial reporting will prevent all errors and all fraud. A control system, no
matter how well conceived and operated, can provide only reasonable, not
absolute, assurance that the objectives of the control systems are met. Further,
the design of a control system must reflect the fact that there are resource
constraints, and the benefits of controls must be considered relative to their
costs. Because of the inherent limitations in all control systems, no evaluation
of controls can provide absolute assurance that all control issues and instances
of fraud, if any, within the company have been deleted. These inherent
limitations include the realities that judgments in decision-making can be
faulty and that breakdowns can occur because of simple error or mistake.
Additionally, controls can be circumvented by the individual acts of some
persons or by collusion of two or more people. The design of any system of
controls also is based in part upon certain assumptions about the likelihood of
future events, and there can be no assurance that any design will succeed in
achieving its stated goals under all potential future conditions; over time,
controls may become inadequate because of changes in conditions, or the degree
of compliance with the policies or procedures may deteriorate. Because of the
inherent limitations in a cost-effective control system, misstatements due to
error or fraud may occur and not be detected.

31



PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

(i) General
The risk of product liability claims, product recalls, litigation and associated
adverse publicity is inherent in the testing, manufacturing, marketing and
selling of pharmaceutical products. The cost of defending against such claims is
expensive even when the claims are not merited. A successful product liability
claim against us could require us to pay a substantial monetary award. If, in
the absence of insurance, we do not have sufficient financial resources to
satisfy a liability resulting from such a claim or to fund the legal defense of
such a claim, we could become insolvent. Product liability insurance coverage is
expensive, difficult to obtain and may not be available in the future on
acceptable terms. Although we carry product liability insurance, this coverage
may not be adequate. In addition, we cannot be certain that insurance coverage
for present or future products will continue to be available. Moreover, an
adverse judgment in a products liability suit, even if insured or eventually
overturned on appeal, could generate substantial negative publicity about our
products and business and inhibit or prevent commercialization of other
products.

An important part of our business strategy is to protect our products and
technologies through the use of patents, proprietary technologies and
trademarks, to the extent available. Our success will depend, in part, upon our
ability to obtain and enforce strong patents, to maintain trade secret
protection and to operate without infringing the proprietary rights of others.
We cannot however assure you that our patents or patent applications or those of
our third party manufacturers will provide valid patent protection sufficiently
broad to protect our products and technology and will not be challenged,
revoked, invalidated, infringed or circumvented by third parties. In the regular
course of business, we are a party to litigation or other proceedings relating
to intellectual property rights.

(ii) Specific
There are various legal proceedings against the Company. Please see the
Company's Form 10-K for 2002, where these have been fully explained or referred
to. There are no material updates to these proceedings since the filing of the
10-K, subject as stated below. There is no assurance that the Company will be
successful in these proceedings and if it is not there may be a material impact
on the Company's results and financial position.

In May 2003, in the ADDERALL trade dress litigation with Barr Laboratories Inc.
(Barr), the United States Court of Appeals for the Third Circuit affirmed the
District Court's denial of Shire's request for a preliminary injunction.



ITEM 2. CHANGES IN SECURITIES

None


ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None



32



ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

An Annual General Meeting of Shareholders was held on June 12, 2003. The
following resolutions were adopted by the margins indicated:

1. Ordinary resolution to receive and consider the report of the directors' and
financial statements for the year ended December 31, 2002.

For Against Open Abstentions
297,105,123 2,184,513 3,644,046 611,414

2. Ordinary resolution to re-appoint The Hon James Andrews Grant as Director.

For Against Open Abstentions
290,441,820 5,906,882 3,651,510 3,544,884


3. Ordinary resolution to re-appoint Dr Joseph Wilson Totten as Director.

For Against Open Abstentions
257,182,526 28,676,232 3,650,812 14,035,526

4. Ordinary resolution to re-appoint Angus Charles Russell as Director.

For Against Open Abstentions
257,174,891 28,682,744 3,650,910 14,036,551

5. Ordinary resolution to appoint Matthew William Emmens as Director.

For Against Open Abstentions
264,521,882 21,437,252 3,650,545 13,935,417

6. Ordinary resolution to re-appoint Deloitte & Touche as Auditors and authorize
the Directors to fix their remuneration.

For Against Open Abstentions
287,682,414 11,550,319 3,647,192 665,171

7. Ordinary resolution to approve the Directors' remuneration report for the
financial year ended December 31, 2002.

For Against Open Abstentions
170,109,858 122,170,760 3,645,227 7,619,251

8. Special resolution to generally and unconditionally authorize the directors
to make market purchases (within the meaning of Section 163(3) of the Companies
Act 1985) of not more than 48,452,304 ordinary shares of 5p each in the
Company's share capital at not less than 5p per share and not more than 5% above
the average of the middle market quotations for the ordinary shares in the
Company taken from the London Stock Exchange Daily Official List for the 5
business days immediately preceding the day on which the shares are contracted
to be purchased (in each case exclusive of any expenses) provided that this
authority shall expire at the conclusion of the next Annual General Meeting of
the Company.

For Against Open Abstentions
296,662,152 2,314,775 3,647,539 920,630


33



ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS (continued)

9. Special resolution to:
(a) Approve the Shire Pharmaceutical Group plc Deferred Bonus Plan,
and
(b) Authorize the Directors to establish further plans based on the
Deferred Bonus Plan, but modified to take account of local tax,
exchange control or securities laws in overseas territories,
provided that any shares made available under further plans are
treated as counting against any limits on individual or overall
participation in the Deferred Bonus Plan.

For Against Open Abstentions
285,121,725 12,235,178 3,644,107 2,544,086

10. Special resolution to approve the Shire Pharmaceutical Group plc Employee
Benefit Trust

For Against Open Abstentions
290,567,028 7,931,911 3,647,508 1,398,649

11. Special resolution to authorize the limit on the aggregate principal amount
outstanding in respect of monies borrowed by the Group of a sum equal to
US$400,000,000 currently provided for in Article 102 (B) of the Company's
Articles of Association be increased to a sum equal to US$1,200,000,000.

For Against Open Abstentions
288,537,765 3,678,519 3,646,790 7,682,022


ITEM 5. OTHER INFORMATION

The Chairman of the Audit Committee of Shire pre-approves all non-audit
services, including tax advisory and compliance services, provided by the
Company's independent auditors, Deloitte & Touche. A process for pre-approval
has been in place since July 1, 2002 and has continued through to the end of the
period covered by this Quarterly Report.


ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

(a) Exhibits

31.1 Certification of Matthew Emmens pursuant to Rule 13a - 14 under The
Exchange Act.

31.2 Certification of Angus Russell pursuant to Rule 13a - 14 under The Exchange
Act.

32.1 Certification of Matthew Emmens pursuant to Section 906 of the Sarbanes -
Oxley Act of 2002.

32.2 Certification of Angus Russell pursuant to Section 906 of the Sarbanes -
Oxley Act of 2002.

(b) Reports on Form 8-K

During the second quarter ended June 30, 2003, the following reports on Form 8-K
were filed by the Company with the Securities and Exchange Commission:

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported April 8, 2003, with respect to the
issue of a press release announcing holdings by Franklin Resources, Inc. and
their subsidiaries in the ordinary share capital of Shire.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported April 15, 2003, with respect to the
issue of a press release providing a historic quarterly analysis of the 2002
unaudited statement of operations reflecting presentational changes.


34


Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported April 17, 2003, with respect to the
issue of a press release announcing an invitation to a presentation of results
for the quarter ended March 31, 2003.

(b) Reports on Form 8-K (continued)
Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported April 28, 2003, with respect to the
issue of a press release noting announcement by Noven Pharmaceuticals, Inc. of
FDA "not approvable" letter relating to METHYPATCH(R).

Form 8-K (Item 7 - Financial Statements and exhibits, and Item 9- Regulation FD
Disclosure (but filed pursuant to Item 12 - Results of Operations and Financial
Condition)), date of earliest event reported May 1, 2003, with respect to the
issue of a press release reporting results for the first quarter ended March 31,
2003.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported May 8, 2003, with respect to the
issue of a press release announcing new program evaluating ADDERALL XR(R) in
adolescents with attention hyperactivity disorder.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported May 12, 2003, with respect to the
issue of a press release announcing resignations of non-executive directors from
the Board of Directors of the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported May 15, 2003, with respect to the
issue of a press release announcing submission to the UK Listing Authority of
Notice of 2003 Annual General Meeting and Form of Proxy.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported May 20, 2003, attaching Notice of
2003 Annual General Meeting and Form of Proxy.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 2, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 4, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 5, 2003, with respect to the
issue of a press release announcing share repurchase by the Company (on June 4,
2003).

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 5, 2003, with respect to the
issue of a press release announcing share repurchase by the Company (on June 5,
2003).

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 9, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 10, 2003, with respect to the
issue of a press release announcing Fosrenol(R) (Lanthanum Cabonate) first
non-calcium phosphate binder to demonstrate long-term benefit in end stage renal
disease.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 10, 2003 with respect to the
issue of press releases announcing share repurchase by the Company, application
for share listing in connection with exchange of Shire Acquisition Inc.
Exchangeable Shares and exercise of stock options by the Hon James Grant QC.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 11, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 12, 2003, with respect to the
issue of press release announcing share repurchase by the Company.

35



Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 13, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

(b) Reports on Form 8-K (continued)
Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 13, 2003, with respect to the
issue of a press release announcing the passage of resolutions at the Annual
General Meeting.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 17, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 18, with respect to the issue of
press releases announcing share repurchases by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 20, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 23, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 24, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 25, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 26, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 27, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

Form 8-K (Item 5 - Other Events, and Item 7 - Financial Statements and
exhibits), date of earliest event reported June 30, 2003, with respect to the
issue of a press release announcing share repurchase by the Company.

36




SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the
Company has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

SHIRE PHARMACEUTICALS GROUP PLC
(Registrant)


Date: August 14, 2003

/s/ Matthew Emmens
------------------------
By: Matthew Emmens
Chief Executive

Date: August 14, 2003

/s/ A C Russell
-----------------------------
By: Angus Russell
Group Finance Director



37



EXHIBIT 31.1
CERTIFICATION OF MATTHEW EMMENS PURSUANT TO
RULE 13a-14 UNDER THE
SECURITIES EXCHANGE ACT OF 1934
FORM 10-Q FOR THE QUARTER ENDED
JUNE 30, 2003 OF
Shire Pharmaceuticals Group PLC

I, Matthew Emmens, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Shire Pharmaceuticals
Group PLC;

2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to
make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by
this quarterly report;

3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all
material respects the financial condition, results of operations and cash
flows of the registrant as of, and for, the periods presented in this
quarterly report;

4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made
known to us by others within those entities, particularly during
the period in which this quarterly report is being prepared;

b) Evaluated the effectiveness of the registrant's disclosure
controls and procedures and presented in this quarterly report
our conclusions about the effectiveness of the disclosure
controls and procedures, as of the end of the period covered by
this report based on such evaluation;

c) Disclosed in this report any change in the registrant's internal
control over financial reporting that occurred during the
registrant's most recent fiscal quarter that has materially
affected, or is reasonably likely to materially affact, the
registrant's internal control over financial reporting; and

5. The registrant's other certifying officers and I have disclosed, based on
our most recent evaluation of internal control over financial reporting, to
the registrant's auditors and the audit committee of registrant's board of
directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the
design or operation of internal control over financial reporting
which are reasonably likely to adversely affect the registrant's
ability to record, process, summarize and report financial
information; and

b) Any fraud, whether or not material, that involves management or
other employees who have a significant role in the registrant's
internal control over financial reporting.




Date: August 14, 2003 /s/ Matthew Emmens
-------------------
Matthew Emmens
Chief Executive

38



EXHIBIT 31.2
CERTIFICATION OF ANGUS RUSSELL PURSUANT TO
RULE 13a-14 UNDER THE
SECURITIES EXCHANGE ACT OF 1934
FORM 10-Q FOR THE QUARTER ENDED
JUNE 30, 2003 OF
Shire Pharmaceuticals Group PLC

I, Angus Russell certify, that:

1. I have reviewed this quarterly report on Form 10-Q of Shire Pharmaceuticals
Group PLC;

2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to
make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by
this quarterly report;

3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all
material respects the financial condition, results of operations and cash
flows of the registrant as of, and for, the periods presented in this
quarterly report;

4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this quarterly report is being prepared;

b) Evaluated the effectiveness of the registrant's disclosure controls
and procedures and presented in this quarterly report our conclusions
about the effectiveness of the disclosure controls and procedures, as
of the end of the period covered by this report based on such
evaluation;

c) Disclosed in this report any change in the registrant's internal
control over financial reporting that occurred during the registrant's
most recent fiscal quarter that has materially affected, or is
reasonably likely to materially affact, the registrant's internal
control over financial reporting; and

5. The registrant's other certifying officers and I have disclosed, based on
our most recent evaluation of internal control over financial reporting, to
the registrant's auditors and the audit committee of registrant's board of
directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrant's ability to
record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal
control over financial reporting.




Date: August 14, 2003 /s/ A C Russell
----------------------
Angus Russell
Group Finance Director

39


Exhibit 32.1


Certification
Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002
(Chapter 63, Title 18 U.S.C. ss.ss. 1350(a) and (b))

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chapter 63, Title 18
U.S.C. ss.ss.1350(a) and (b)), the undersigned hereby individually certifies in
his capacity as an officer of Shire Pharmaceuticals Group plc (the "Company")
that the Quarterly Report of the Company on Form 10-Q for the quarter ended June
30, 2003 fully complies with the requirements of Section 13(a) of the Securities
Exchange Act of 1934 and that the information contained in such report fairly
presents, in all material respects, the financial condition and results of
operations of the Company.



Dated: August 14, 2003 /s/ Matthew Emmens
-------------------
Matthew Emmens
Chief Executive


This certification will not be deemed filed for purposes of Section 18 of the
Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that
section. Such certification will not be deemed to be incorporated by reference
into any filing under the Securities Act of 1933 or the Exchange Act, except to
the extent the registrant specifically incorporates it by reference. The
foregoing certification is, to the extent permitted by law, provided by the
above signatory to the extent of his respective knowledge.

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to Shire Pharmaceuticals Group plc
and will be retained by Shire Pharmaceuticals Group plc and furnished to the
Securities and Exchange Commission or its staff upon request.



40


Exhibit 32.2


Certification
Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002
(Chapter 63, Title 18 U.S.C. ss.ss. 1350(a) and (b))

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chapter 63, Title 18
U.S.C. ss.ss.1350(a) and (b)), the undersigned hereby individually certifies in
his capacity as an officer of Shire Pharmaceuticals Group plc (the "Company")
that the Quarterly Report of the Company on Form 10-Q for the quarter ended June
30, 2003 fully complies with the requirements of Section 13(a) of the Securities
Exchange Act of 1934 and that the information contained in such report fairly
presents, in all material respects, the financial condition and results of
operations of the Company.



Dated: August 14, 2003 /s/ A C Russell
----------------------
Angus Russell
Group Finance Director


This certification will not be deemed filed for purposes of Section 18 of the
Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that
section. Such certification will not be deemed to be incorporated by reference
into any filing under the Securities Act of 1933 or the Exchange Act, except to
the extent the registrant specifically incorporates it by reference. The
foregoing certification is, to the extent permitted by law, provided by the
above signatory to the extent of his respective knowledge.

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to Shire Pharmaceuticals Group plc
and will be retained by Shire Pharmaceuticals Group plc and furnished to the
Securities and Exchange Commission or its staff upon request.





41