Press Releases

Arena Pharmaceuticals to Present at the Bank of America 2006 Health Care Conference on Wednesday, May 17, 2006

SAN DIEGO, May 11 /PRNewswire-FirstCall/ -- Arena Pharmaceuticals, Inc. (Nasdaq: ARNA) announced today that it will present at the Bank of America 2006 Health Care Conference on Wednesday, May 17, 2006, at 3:20 p.m. Pacific Time (6:20 p.m. Eastern Time) at the Four Seasons Hotel in Las Vegas, Nevada. Jack Lief, Arena's President and Chief Executive Officer, will provide a corporate overview and update on Arena and its clinical development and discovery programs.

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

Contacts: Jack Lief
President and CEO

David Walsey
Director, Corporate Communications

Arena Pharmaceuticals, Inc.
858.453.7200, ext. 1682

www.arenapharm.com
SOURCE Arena Pharmaceuticals, Inc. /CONTACT: Jack Lief, President and CEO, or David Walsey, Director,