Pfizer Inc. has filed a civil suit against the generic drug manufacturer Teva Pharmaceutical Industries Ltd. for infringement of US patent for antibiotic drug Zyvox. The lawsuit was filed on January 15 in the US District Court, District of Delaware in response to Teva’s submission of an abbreviated new drug application (ANDA) with the US Food and Drug Administration seeking approval to market a generic version of Zyvox before the expiration of
Last month, Pfizer Inc. sued Hyderabad-based Dr. Reddy’s Laboratories Ltd. for infringement of US Patent No. 5,969,156 (protecting crystalline form of atorvastatin calcium) for anti-cholesterol drug Lipitor. The lawsuit was filed on December 08 in the same district court following Dr. Reddy’s filing of an abbreviated new drug application (ANDA), seeking approval to market a generic version of Lipitor before the expiration of OB listed patents for Lipitor (Pfizer Inc. et al v. Dr. Reddy's Laboratories Ltd. et al, US District Court, District of Delaware, Case No. 1:2009cv00943).