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10-K/A - PHARMACYCLICS INCform10ka07380_06302010.htm
EX-31.1 - PHARMACYCLICS INCex311to10ka07380_06302010.htm
EX-32.1 - PHARMACYCLICS INCex321to10ka07380_06302010.htm
Exhibit 31.2
 
 
CERTIFICATION OF CHIEF FINANCIAL OFFICER
CERTIFICATION
 
I, Rainer M. Erdtmann, certify that:
 
1.           I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of Pharmacyclics, Inc.;
 
2.           Based on my knowledge, this 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 report.
 
   
   
  /s/ Rainer M. Erdtmann
 
Rainer M. Erdtmann
Vice President, Finance and Administration and Secretary (Principal Financial and Accounting Officer)
                                                      
October 26, 2010