The multi-billion-dollar payment is meant to resolve claims that the drugmaker's pain medication, OxyContin, caused an opioid crisis.

All 50 states, D.C., and four U.S. territories signed off on the multi-billion dollar settlement proposal with OxyContin maker Purdue Pharma in litigation over Purdue's alleged role in America's opioid addiction crisis.

Under the terms of the deal, Purdue Pharma will become a public benefit company, with profits directed toward opioid addiction.