Definition of ephedrine in English:

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ephedrine

Pronunciation: /əˈfedrən/
/ˈefədrən/ /ˈefəˌdrēn/

noun

Medicine
A crystalline alkaloid drug obtained from some ephedras. It causes constriction of the blood vessels and widening of the bronchial passages and is used to relieve asthma and hay fever.
  • Alternative name: 1-phenyl-2-methylaminopropanol; chemical formula: C10H15NO.
Example sentences
  • He studied the tissue distribution and metabolism of caffeine, amphetamines, ephedrine, and narcotic drugs.
  • A 43 year old general practitioner had had juvenile asthma requiring regular ephedrine.
  • If the medicines aspirin, ephedrine, and morphine were once botanicals, how did they get to be tested and marketed as drugs?

Origin

Late 19th century: from ephedra + -ine4.

For editors and proofreaders

Syllabification: e·phed·rine

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