With thousands of alleged violations, the total damages would be more than $50 million.
Attorney General Jahna Lindemuth said the state believes Purdue Pharma overstated benefits and understated risks of Oxycontin, and had a pattern of deceptive marketing practices.
The state of Alaska is looking into whether it should sue the manufacturers of opioid painkillers for their contributions to the opioid epidemic and has hired a law firm that is representing two other states in related legal action.
The overdose death toll from opioids, both prescription drugs and heroin, has almost quadrupled since 1999. In 2014 alone, 28,000 people died of opioid overdoses, more than half from prescription drugs.