Ephedrine (EPH) is a sympathomimetic amine commonly used as a stimulant, appetite suppressant, concentration aid, decongestant, and to treat hypotension associated with anaesthesia. Ephedrine is similar in structure to the (semi-) synthetic derivatives amphetamine and methamphetamine. Chemically, it's an alkaloid derived from various plants in the genus Ephedra (family Ephedraceae). It is most usually marketed in the hydrochloride and sulfate forms. In traditional Chinese medicines, the herb m&… (More on Ephedrine)