Pfizer wins Viagra patent battle against Teva (Reuters)

A box of Viagra, typically used to treat erectile dysfunction, is seen in a pharmacy in Toronto January 31, 2008. REUTERS/Mark BlinchReuters – Pfizer Inc said on Monday it won a patent infringement case against the U.S. unit of Teva Pharmaceutical Industries Ltd, preventing Teva from launching a generic version of Pfizer’s erectile dysfunction drug Viagra until October 2019.