In a civil complaint filed in the US District Court for the Northern District of Illinois, the Justice Department alleges that Walgreens Boots Alliance, Walgreen Co. and various subsidiaries (collectively, Walgreens) dispensed millions of unlawful prescriptions in violation of the Controlled Substances Act (CSA) and then sought reimbursement for many of these prescriptions from various federal healthcare programs in violation the False Claims Act (FCA). Walgreens is one of the country’s largest pharmacy chains, with over 8,000 pharmacies across the United States. The government’s complaint alleges that, from approximately August 2012 through the present, Walgreens knowingly filled millions of prescriptions for controlled substances that lacked a legitimate medical purpose, were not valid, and/or were not issued in the usual course of professional practice.