WASHINGTON, Dec 29 (Reuters) - The U.S. government on Thursday filed a lawsuit accusing AmerisourceBergen Corp (ABC.N), one of the nation's largest drug distributors, of helping ignite the nation's deadly opioid epidemic by failing to report hundreds of thousands of suspicious orders of prescription painkillers. The government said AmerisourceBergen had since 2014 systematically refused or negligently failed to flag suspicious orders by pharmacy customers when it had reason to know that opioids were being diverted to illegal channels. "For years, AmerisourceBergen prioritized profits over its legal obligations and over Americans' well-being," Associate Attorney General Vanita Gupta told reporters. In a statement, AmerisourceBergen called the lawsuit an improper attempt to "shift blame" and the burdens of law enforcement from the Justice Department and DEA to the companies they regulate. The Justice Department said AmerisourceBergen for years understaffed and unfunded programs designed to ensure compliance with the Controlled Substances Act.

---