FRANKFORT, Ky. (AP) — The company's website claimed its product would "enable patients to stay in the workplace, enjoy interaction with family and friends and remain a member of society."

But Kentucky's Attorney General is more interested in what the company did not say: Its product was dangerously addictive.

Andy Beshear sued St. Louis-based pharmaceutical manufacturer Mallinckrodt on Thursday, arguing it misrepresented the addictive nature of its opioid-based prescription painkillers. He said the company used "front groups" to promote opioid use and combat efforts to restrict prescriptions....