ACADIA Pharmaceuticals Inc. (Nasdaq: ACAD), a biopharmaceutical company utilizing innovative technology to fuel drug discovery and clinical development of novel treatments for central nervous system disorders, today announced that it will present at The Thomas Weisel Partners 2008 Healthcare Conference on Thursday, September 4, 2008, at 2:40 p.m. Eastern Time at the Four Seasons Boston Hotel.

A live webcast of ACADIA’s presentation will be accessible on the company’s website, www.acadia-pharm.com, under the investors section and an archived recording will be available on the website through September 18, 2008.

About ACADIA Pharmaceuticals

ACADIA is a biopharmaceutical company utilizing innovative technology to fuel drug discovery and clinical development of novel treatments for central nervous system disorders. ACADIA is focused on developing a portfolio of its four most advanced product candidates, including pimavanserin in Phase III for Parkinson’s disease psychosis, a compound in Phase II for chronic pain and a compound in Phase I for glaucoma, both in collaboration with Allergan, and ACP-106 in IND-track development. All of the product candidates in ACADIA’s pipeline emanate from discoveries made using its proprietary drug discovery platform and are directed at indications with large unmet medical needs. ACADIA’s corporate headquarters is located in San Diego, California and it maintains research and development operations in both San Diego and Malmö, Sweden.

ACADIA Pharmaceuticals Inc.
Lisa Barthelemy, Director, Investor Relations
Thomas H. Aasen, Vice President and
Chief Financial Officer
858-558-2871