Bristol-Myers Squibb Co. claims in a suit filed in U.S. District Court in Trenton, New Jersey, that a federal program empowering Medicare to negotiate certain drug prices is a “faux negotiation” that allows the government to set prices.

The suit, filed by Jones Day, follows previous legal challenges to the program from Merck and the U.S. Chamber of Commerce. Jones Day also represents Merck in the other litigation, while King & Spalding, along with Porter Wright Morris & Arthur of Dayton, Ohio, represent the U.S. Chamber of Commerce.