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-23.1 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM - ARENA PHARMACEUTICALS INCd268596dex231.htm
EX-32.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER - ARENA PHARMACEUTICALS INCd268596dex321.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 23.2

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-45330, 333-45332, 333-62894, 333-86350, 333-135398 and 333-160329) and Form S-3 (Nos. 333-177826, 333-112542, 333-136023, 333-160983, 333-166481 and 333-167498) of Arena Pharmaceuticals, Inc. and in the related Prospectuses of our report dated March 16, 2010, with respect the consolidated financial statements of Arena Pharmaceuticals, Inc. included in the Annual Report (Form 10-K) for the year ended December 31, 2011.

/s/    Ernst & Young LLP

San Diego, California

March 15, 2012