The Justice Department announced today that the United States has filed a complaint in intervention in a whistleblower lawsuit brought under the False Claims Act (FCA) against Rite Aid Corporation and various subsidiaries (collectively Rite Aid) alleging that Rite Aid knowingly filled unlawful prescriptions for controlled substances. In addition to alleging claims under the FCA, the government’s complaint also alleges violations of the Controlled Substances Act (CSA). Rite Aid is one of the country’s largest pharmacy chains, with over 2,200 pharmacies in 17 states.