4-Hydroxyamphetamine (4HA), also known as hydroxyamfetamine (INN and BAN), hydroxyamphetamine (USAN), oxamphetamine, norpholedrine, para-hydroxyamphetamine, and a-methyltyramine, is a sympathomimetic drug, that is, a drug that stimulates the sympathetic nervous system.

4-Hydroxyamphetamine (4HA), also known as hydroxyamfetamine (INN and BAN), hydroxyamphetamine (USAN), oxamphetamine, norpholedrine, para-hydroxyamphetamine, and a-methyltyramine, is a sympathomimetic drug, that is, a drug that stimulates the sympathetic nervous system.