Pharmaceutical companies Concordia Pharmaceuticals Inc. and Par Pharmaceutical, Inc. settled FTC charges that they entered into an unlawful agreement not to compete in the sale of generic versions of Kapvay, a prescription drug used to treat Attention Deficit Hyperactivity Disorder. As part of the settlement, the companies agreed not to enforce the anticompetitive provisions of their agreement. Until May 15, 2015, Concordia and Par were the only two firms permitted by the FDA to market generic Kapvay. Rather than competing against one another, Concordia agreed not to sell an authorized generic version of Kapvay in exchange for a share of Par’s revenues. Under the terms of the settlements, Concordia is prohibited from enforcing the anticompetitive provisions of its agreement with Par, including the profit-sharing provisions, and Par is prohibited from enforcing provisions that bar Concordia from agreeing not to sell an authorized generic version of Kapvay. Concordia began selling generic Kapvay after learning of the FTC’s investigation.