Iowa will receive nearly $4.7 million over five years as part of a multi-state settlement with a firm that worked with opioid manufacturers to promote addictive painkillers, according to the Iowa Attorney General’s Office.

Iowa Attorney General Tom Miller said Thursday (2/4) that the $4.68 million settlement will be used to address problems caused by opioids, including paying for substance abuse treatment services for Iowans.

Iowa is part of a coalition of 53 attorneys general who collectively won $573 million in a settlement with McKinsey & Company, one of the world’s largest consulting firms. The settlement will be split among 47 states, five U.S. territories and the District of Columbia. It’s the first multi-state opioid settlement to result in a substantial payout to states.

In addition to the money, McKinsey must prepare, as part of the settlement, tens of thousands of its internal documents detailing its work for Purdue Pharma and other opioid companies for public disclosure online.

“This database sets a new precedent of accountability and transparency to the public,” Miller said.