Amphastar Pharmaceuticals, Inc. announced that it has entered into a settlement agreement with Momenta Pharmaceuticals Inc. and Sandoz Inc. Under the terms of the Settlement Agreement, Momenta/Sandoz will pay Amphastar $59.9 million no later than July 2, 2019; and Amphastar and Momenta/Sandoz will submit stipulations of dismissal of all pending litigation between the parties.