Definition of ephedrine
: a crystalline alkaloid C10H15NO extracted from a Chinese ephedra (Ephedra sinica) or synthesized that has the physiological action of epinephrine and is usually used in the form of its hydrochloride or sulfate as a bronchodilator, nasal decongestant, and vasopressor — see ma huang, pseudoephedrine
Explore Merriam-Webster
Origin and Etymology of ephedrine
New Latin Ephedra
Other Biochemistry Terms
Medical Dictionary
ephedrine
playMedical Definition of ephedrine
: a crystalline alkaloid C10H15NO extracted from a Chinese ephedra (Ephedra sinica) or synthesized that has the physiological action of epinephrine and is usually used in the form of its hydrochloride C10H15NO·HCl or sulfate (C10H15NO)2·H2SO4 as a bronchodilator, nasal decongestant, and vasopressor—see ephedra 2, pseudoephedrine
Learn More about ephedrine
-
Britannica.com: Encyclopedia article about ephedrine
Seen and Heard
What made you want to look up ephedrine? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!