Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - ARENA PHARMACEUTICALS INCFinancial_Report.xls
EX-21.1 - SUBSIDIARIES OF THE REGISTRANT - ARENA PHARMACEUTICALS INCd268596dex211.htm
EX-31.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER - ARENA PHARMACEUTICALS INCd268596dex311.htm
EX-23.2 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM - ARENA PHARMACEUTICALS INCd268596dex232.htm
EX-23.1 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM - ARENA PHARMACEUTICALS INCd268596dex231.htm
EX-31.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER - ARENA PHARMACEUTICALS INCd268596dex312.htm
EX-3.8 - CERTIFICATE OF DESIGNATIONS - ARENA PHARMACEUTICALS INCd268596dex38.htm
10-K - FORM 10-K - ARENA PHARMACEUTICALS INCd268596d10k.htm
EX-10.36 - AMENDMENT NO.5 TO THE TOLL MANUFACTURING AGREEMENT - ARENA PHARMACEUTICALS INCd268596dex1036.htm

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

In connection with the Annual Report on Form 10-K of Arena Pharmaceuticals, Inc. (“Arena”) for the period ended December 31, 2011, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Jack Lief, as President and Chief Executive Officer of Arena, and Robert E. Hoffman, as Vice President, Finance and Chief Financial Officer of Arena, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of his knowledge:

 

  1. the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

 

  2. the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Arena.

 

/s/    JACK LIEF        

    

/s/    ROBERT E. HOFFMAN        

Jack Lief      Robert E. Hoffman
President and Chief Executive Officer      Vice President, Finance and Chief Financial Officer

Date: March 15, 2012

     Date: March 15, 2012