AVANIR to Present at the Piper Jaffray 20th Annual Health Care Conference

AVANIR Pharmaceuticals (NASDAQ:AVNR) today announced that Keith Katkin, President and Chief Executive Officer, will present at the Piper Jaffray 20th Annual Health Care Conference on Tuesday, December 2 at 2:00 p.m. Eastern time (11:00 a.m. Pacific time). This conference will be held at the New York Palace Hotel in New York. The Piper Jaffray Health Care Conference provides the opportunity for companies to participate in interactive presentations with institutional investors, analysts, and money managers and is a leading forum to look at critical issues and key investing strategies in the health care sector. For more information visit www.piperjaffray.com.

A live audio webcast of the presentation will be available by visiting AVANIR's website at www.avanir.com. To listen to the live presentation, please go to AVANIR's website prior to the start of the presentation to register, download and install the necessary audio software. An archive of Mr. Katkin's presentation at the Piper Jaffray Health Care Conference will be available on the Company's website for 30 days.

About AVANIR

AVANIR Pharmaceuticals is focused on acquiring, developing, and commercializing novel therapeutic products for the treatment of chronic diseases. AVANIR's products and product candidates address therapeutic markets that include the central nervous system, inflammation, and infectious diseases. AVANIR's lead product candidate, Zenvia™, is being developed for the treatment of pseudobulbar affect (PBA) and is the subject of an approvable letter from the U.S. Food and Drug Administration (FDA) for that indication. The Company has initiated a confirmatory Phase III study under a Special Protocol Assessment (SPA) agreement with the FDA utilizing a new lower quinidine dose formulation of Zenvia intended to address safety concerns raised in the Agency's approvable letter for Zenvia in the treatment of PBA. Additionally, in April 2007 AVANIR announced meeting all primary endpoints in a Phase III clinical trial with Zenvia in patients with diabetic peripheral neuropathic (DPN) pain. In May 2008 the Company released top-line results of a formal pharmacokinetic (PK) study that identified alternative lower-dose quinidine formulations of Zenvia for DPN pain intended to deliver similar efficacy and improved safety/tolerability versus the formulations previously tested for this indication. AVANIR has licensed its MIF inhibitor program to Novartis International Pharmaceuticals Ltd. and has sold its anthrax monoclonal antibody program to Emergent BioSolutions. The Company's first commercialized product, Abreva®, is marketed in North America by GlaxoSmithKline Consumer Healthcare and is the leading over-the-counter product for the treatment of cold sores. Further information about AVANIR can be found at www.avanir.com and further information about pseudobulbar affect can be found at www.PBAinfo.org.

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AVANIR Investor Contacts
Eric Benevich or Brenna Mullen
949-389-6700
ir@avanir.com

Nov 25, 2008