Tags: Drug.
U-50488 is a drug which acts as a highly selective κ-opioid agonist but without any μ-opioid antagonist effects. It has analgesic diuretic and antitussive effects and reverses the memory impairment produced by anticholinergic drugs. U-50488 was one of the first selective kappa agonists invented and research on its derivatives has led to the development of a large family of related compounds.
