McKinsey & Company consulting firm has agreed to pay $650 million to settle a federal investigation into its work to help opioids manufacturer Purdue Pharma boost the sales of the highly addictive drug OxyContin,

The major consulting firm McKinsey & Company will pay $650 million to resolve criminal and civil investigations into its consulting for Purdue Pharma, the company that helped to fuel America’s opioid epidemic through its OxyContin prescription drug.

Disgraced former OxyContin marketer Purdue Pharma is on the hook for billions after agreeing to settle cases that held the company responsible for fueling the U.S. opioid crisis. | McKinsey will pay $650 million to settle with the U.