Optimer Pharmaceuticals, Inc. [OPTR] to Ring The NASDAQ Stock Market Opening Bell – Marketwatch

Optimer developed DIFICID(R) (fidaxomicin) tablets, an FDA-approved macrolide antibacterial drug for the treatment of Clostridium difficile-associated diarrhea (CDAD) in adults 18 years of age and older and is commercializing DIFICID in the US and Canada.