an alkaloid, CHNO, derived from certain ephedras or synthesized, and used to relieve nasal congestion and asthma and to constrict certain blood vessels
Origin of ephedrine; from ephedra + -ine
A white, odorless, powdered or crystalline alkaloid, C10H15NO, isolated from shrubs of the genus Ephedra or made synthetically. It is used in the treatment of allergies and asthma.
Origin of ephedrineLatin ephedra, horsetail; see ephedra + –ine2.
NounSee also: éphédrine