(October 26, 2023, 2:31 PM EDT) -- PHILADEPHIA — Direct purchaser plaintiffs in the Suboxone/buprenorphine multidistrict litigation on Oct. 25 asked a Pennsylvania federal judge to grant preliminary approval of a $385 million settlement to resolve a 10-year-old complaint that drugmaker Indivior Inc. engaged in anti-competitive behavior that caused them to pay higher prices for Suboxone brand buprenorphine, a drug used to treat opioid use disorder....