Arena Pharmaceuticals, Inc. (NASDAQ:ARNA) announced today that the company is scheduled to provide an overview of the company, including its clinical development and discovery programs, at two upcoming investor conferences:

-- Cowen 28th Annual Health Care Conference

Presentation: Wednesday, March 19, 2008 at 8:45 a.m. Eastern Time (5:45

a.m. Pacific Time) at the Boston Marriott Copley Place in Boston,

Massachusetts

Presenting: Jack Lief, Arena's President and Chief Executive Officer

-- Lehman Brothers Eleventh Annual Global Healthcare Conference

Presentation: Thursday, March 20, 2008 at 10:45 a.m. Eastern Time (7:45

a.m. Pacific Time) at the Loews Miami Beach Hotel in Miami, Florida

Presenting: Robert E. Hoffman, Arena's Vice President, Finance and

Chief Financial Officer

A live audio webcast of each presentation will be available under the investor relations section of Arena's website at http://www.arenapharm.com/. A replay of each presentation will be available for 30 days following the event. Please connect to Arena's website several minutes prior to the start of the webcast to ensure adequate time for any software download that may be necessary.

About Arena Pharmaceuticals

Arena is a clinical-stage biopharmaceutical company focused on discovering, developing and commercializing oral drugs in four major therapeutic areas: cardiovascular, central nervous system, inflammatory and metabolic diseases. Arena's most advanced drug candidate, lorcaserin, is being investigated in a Phase 3 clinical trial program for the treatment of obesity. Arena's broad pipeline of novel compounds targeting G protein-coupled receptors, an important class of validated drug targets, includes compounds being evaluated independently and with its partners, Merck & Co., Inc. and Ortho-McNeil Pharmaceutical, Inc.