Auspex to Present at Jefferies Global Healthcare Conference

LA JOLLA, Calif., May 28, 2014 (GLOBE NEWSWIRE) — Auspex Pharmaceuticals, Inc. (Nasdaq:ASPX), a late clinical stage biopharmaceutical company focused on developing and commercializing novel medicines for the treatment of orphan diseases, today announced that Pratik Shah, Ph.D., President and Chief Executive Officer, will present at the Jefferies 2014 Global Healthcare Conference on Wednesday, June 4, 2014 at 8:30 a.m. EDT in New York City.

A live webcast of the presentation will be available through the investor relations section of Auspex Pharmaceutical’s website, www.auspexpharma.com. Following the live webcast, a replay will be available through the same section for 30 days.

About Auspex Pharmaceuticals

Auspex Pharmaceuticals is a biopharmaceutical company focused on the development and commercialization of novel medicines for the treatment of orphan diseases. Auspex’s pipeline includes product candidates to address unmet medical needs in hyperkinetic movement disorders, such as chorea associated with Huntington’s disease, tardive dyskinesia and Tourette syndrome, as well as fibrotic indications, including idiopathic pulmonary fibrosis (IPF) and other orphan conditions. Auspex’s lead product candidate, SD-809 (dutetrabenazine), is in a Phase 3 registration clinical trial for the treatment of chorea (abnormal involuntary movements) associated with Huntington’s disease. Auspex plans to initiate a Phase 2/3 clinical trial of SD-809 in tardive dyskinesia and a Phase1b in Tourette syndrome. Auspex also plans to initiate a Phase 1 clinical trial with SD-560 (deuterium-containing form of pirfenidone). Auspex has employed its deuterium chemistry approach to optimize other compounds in its portfolio that are at various stages of development. For further information, please visit the company’s website www.auspexpharma.com.

CONTACT: Corporate Communications Contact:

Jason Spark at Canale Communications, Inc.

jason@canalecomm.com

619-849-6005