Definition of ephedrine in English:

ephedrine

noun ˈɛfədriːn

mass nounMedicine

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.
〔医〕麻黄素，麻黄碱
Chemical formula: C₁₀H₁₅NO
Example sentencesExamples
- In the 1960s, drug therapy was limited to potassium iodide and ephedrine.
- 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.
- Substances like phentermine and other drugs, such as ephedrine, are hidden in many supplements that the players don't know about.
- 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.

Definition of ephedrine in US English:

ephedrine

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.
〔医〕麻黄素，麻黄碱
Alternative name: 1-phenyl-2-methylaminopropanol; chemical formula: C₁₀H₁₅NO
Example sentencesExamples
- 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.
- Substances like phentermine and other drugs, such as ephedrine, are hidden in many supplements that the players don't know about.
- In the 1960s, drug therapy was limited to potassium iodide and 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 + -ine.

词汇	ephedrine
释义	Definition of ephedrine in English: ephedrine noun ˈɛfədriːn mass nounMedicine 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. 〔医〕麻黄素，麻黄碱 Chemical formula: C₁₀H₁₅NO Example sentencesExamples In the 1960s, drug therapy was limited to potassium iodide and ephedrine. 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. Substances like phentermine and other drugs, such as ephedrine, are hidden in many supplements that the players don't know about. 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. Definition of ephedrine in US English: ephedrine 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. 〔医〕麻黄素，麻黄碱 Alternative name: 1-phenyl-2-methylaminopropanol; chemical formula: C₁₀H₁₅NO Example sentencesExamples 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. Substances like phentermine and other drugs, such as ephedrine, are hidden in many supplements that the players don't know about. In the 1960s, drug therapy was limited to potassium iodide and 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 + -ine.
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