Somaxon Sues Another Competitor Over Patent

San Diego-based Somaxon Pharmaceuticals has sued a competitor, which is looking to market a generic version of its Silenor insomnia drug. According to a legal filing files in the Delaware District Court, Somaxon is suing Par Pharmaceutical and related Par Pharmaceutical Companies over its patents. Somaxon is also suing Actavis and Mylan over their own efforts to create a generic of Silenor, and sued those firms in December.