ephedra

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Related to ephedras: Ma-huang

e·phed·ra

(ē-fed'ră),
Ephedra equisetina (family Gnetaceae). Ma huang; the plant source for the alkaloid ephedrine. Indigenous to China and India, it is 0.7% to over 1% ephedrine; also contains some pseudoephedrine.
Farlex Partner Medical Dictionary © Farlex 2012

ephedra

(ĭ-fĕd′rə, ĕf′ĭ-drə)
n.
1. Any of various usually shrubby gymnosperms of the genus Ephedra, having jointed green stems and small scalelike leaves, some species of which are used as a source of ephedrine.
2. A drug containing ephedrine derived from one of these plants, used in traditional Chinese medicine as a stimulant and decongestant and sold in the United States primarily as a dietary supplement for weight loss before it was banned because of toxic side effects in 2004. Also called ma huang.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

joint fir

Chinese and Herbal medicine
A shrub, the stem of which contains ephedrine, which is a bronchodilator, diaphoretic, diuretic and vasoconstrictor; it is used to treat asthma, bronchitis, fever, fluid retention, hypotension, paraesthesias, to stimulate the central nervous system and to suppress the appetite.
 
Toxic effects
Ephedra should not be used in patients with cardiac or thyroid disease, diabetes or hypertension.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

e·phed·ra

(e-fed'ră)
(Ephedra sinica and other spp.) An herbal supplement now banned in the United States, where it was used as a weight-loss supplement. Severe toxicities and adverse effects reported (e.g., stroke, cardiac arrest, seizure, psychotic attacks); over 800 reports of related illness; the compounds also included substances banned for use by athletes.
Synonym(s): ma-huang, Mormon tea, popotillo.
[L., horsetail, fr. G. ephedros, sitting on]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

e·phed·ra

(e-fed'ră)
Ephedra equisetina;Ma huang; the plant source for the alkaloid ephedrine. Indigenous to China and India, it also contains some pseudoephedrine.
[L., horsetail, fr. G. ephedros, sitting on]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Scientific opinion on safety evaluation of Ephedra species in food.
Steam distillation-solid-phase microextraction for the detection of Ephedra sinica in herbal preparations.
Ephedrine-type alkaloid content of nutritional supplements containing Ephedra sinica (Ma-huang) as determined by high performance liquid chromatography.
Molecular analysis and chemical evaluation of Ephedra plants in Mongolia.