Optimer Pharmaceuticals to Present at the 31st Annual J.P. Morgan Healthcare Conference

 Optimer Pharmaceuticals to Present at the 31st Annual J.P. Morgan Healthcare
                                  Conference

PR Newswire

JERSEY CITY, N.J., Dec. 20, 2012

JERSEY CITY, N.J., Dec. 20, 2012 /PRNewswire/ -- Optimer Pharmaceuticals, Inc.
(NASDAQ: OPTR) today announced that the Company will present at the 31^st
Annual J.P. Morgan Healthcare conference on Tuesday, January 8, 2013 at 8:00
AM Pacific Time and provide a business overview and update.

(Logo: http://photos.prnewswire.com/prnh/20090413/LA97352LOGO)

A live audio webcast of the presentation will be accessible on the Investors
page of the Company's website at www.optimerpharma.com. Replays of the
presentation will be available at the same location for 30 days following the
conference.

AboutOptimer Pharmaceuticals
Optimer Pharmaceuticals, Inc.is a global biopharmaceutical company focused on
developing and commercializing innovative hospital specialty products that
have a positive impact on society. Optimer developed DIFICID® (fidaxomicin)
tablets, anFDA-approved macrolide antibacterial drug for the treatment
ofClostridium difficile-associated diarrhea (CDAD) in adults 18 years of age
and older and is commercializing DIFICID in the US and Canada. Optimer also
received marketing authorization for fidaxomicin tablets in theEuropean
Unionwhere its partner,Astellas Pharma Europe, is commercializing
fidaxomicin under the trade name DIFICLIR™. The Company is exploring
marketing authorization in other parts of the world whereC. difficilehas
emerged as a serious health problem, includingAsia. Additional information
can be found at http://www.optimerpharma.com.

Contacts
Optimer Pharmaceuticals, Inc.
David Walsey, VP of Investor Relations and Corporate Communications
(858) 964-3418

Canale Communications
Jason I. Spark, Senior Vice President
(619) 849-6005

SOURCE Optimer Pharmaceuticals, Inc.

Website: http://www.optimerpharma.com