Endo Pharmaceuticals Inc./Amneal Pharmaceuticals, Inc.

The FTC is suing Endo Pharmaceuticals, Inc., Endo International plc, Impax Laboratories, LLC, and Impax’s owner, Amneal Pharmaceuticals, Inc., alleging that a 2017 agreement between Endo and Impax violated the antitrust laws by eliminating competition in the market for oxymorphone ER. The complaint charges the defendants with violating Sections 1 and 2 of the Sherman Act, which constitutes unfair methods of competition in violation of Section 5 of the FTC Act. Specifically, Endo, Impax, and Amneal are charged with entering into an illegal agreement in restraint of trade, and Amneal is charged with monopolization of the oxymorphone ER market. The complaint was filed in the U.S. District Court for the District of Columbia on Jan. 25, 2021.