abstract:Hydroxyamfetamine (INN; brand names Paredrine, Mycadrine, and Pedrolon) or hydroxyamphetamine (USAN, BAN), also known by the names oxamphetamine, norpholedrine, 4-hydroxyamphetamine, para-hydroxyamphetamine, and α-methyltyramine, is a sympathomimetic drug, that is, a drug that stimulates the sympathetic nervous system. When used in eye drops, it dilates the pupil.