Endo, Impax Nailed With New Generic Opana Antitrust Suit

By Vin Gurrieri (June 20, 2014, 8:50 PM EDT) -- Endo Pharmaceuticals Inc. and Impax Laboratories Inc. were hit with a proposed antitrust class action in Illinois federal court Thursday, alleging Endo paid the generics manufacturer over $112 million in exchange for Impax's delaying a generic version of Endo's patented Opana ER painkiller....

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