Billing itself as the “world leader in opioid addiction treatment,” Indivior (INDV.L) is looking to diversify into treating cannabis use disorder. The North Chesterfield, Va.–The headquartered company will spend $30 million upfront to acquire Aelis Farma for development rights for AEF0117, an investigational drug that blocks the CB1 cannabinoid receptor in the brain. In addition…