Purdue Pharma has agreed to pay $270 million to settle a historic lawsuit brought by the Oklahoma attorney general, who accused the OxyContin maker of aggressively marketing the opioid painkiller and fueling a drug epidemic that left thousands dead in the state. The settlement comes after Purdue [sought] to delay the start of the trial, which is scheduled for May 28. Attorney General Mike Hunter said ... that $102.5 million of the settlement would be used to help establish a national addiction treatment and research center at Oklahoma State University. The company will also provide $20 million of addiction treatment and opioid rescue medications to the center. A remaining $12.5 million from the settlement will be used directly to help cities and counties with the opioid crisis. The Sackler family, who founded and own Purdue Pharma, will also contribute $75 million over the next five years to the treatment and research center. The lawsuit was brought by Hunter against some of the nation's leading makers of opioid pain medications, alleging that deceptive marketing over the past decade fueled the epidemic in the state. Hunter has said the defendants - Purdue Pharma, Johnson & Johnson, Teva Pharmaceuticals, Allergan and others - deceived the public into believing that opioids were safe for extended use. The settlement was only with Purdue Pharma, and the other defendants are still scheduled to go to trial. Thirty-six states have brought cases against Purdue and other opioid drugmakers.