An alkaloid from the leaves of Ephedra equisetina, E. sinica, and other species (family Gnetaceae), or produced synthetically; an adrenergic (sympathomimetic) agent with actions similar to those of epinephrine; used as a bronchodilator, mydriatic, pressor agent, and topical vasoconstrictor. Generally used salts are e. hydrochloride and e. sulfate.

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ephed·rine i-'fed-rən, Brit also 'ef-ə-drən n a crystalline alkaloid C10H15NO extracted from a Chinese ephedra (Ephedra sinica) or synthesized that has the physiological action of epinephrine and is usu. 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

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a drug that causes constriction of blood vessels and widening of the bronchial passages (see sympathomimetic). It is used mainly as a nasal decongestant, being administered as nasal drops or included with other ingredients in oral cold remedies. It may cause nausea, insomnia, headache, and nervousness.

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ephed·rine (ə-fedґrin) (efґə-drin) [USP] an adrenergic obtained from Ephedra species or prepared synthetically. It stimulates both α- and β-adrenergic receptors and causes increased systolic and diastolic blood pressure and cardiac output by enhancing the release of endogenous norepinephrine from sympathetic neurons. It is also a central nervous system stimulant. It has been used as an ingredient in numerous supplements, with purported benefits including weight loss, increased energy, and enhanced athletic performance, but has been banned from nonprescription use in the United States by the Food and Drug Administration.

Medical dictionary. 2011.

Look at other dictionaries:

  • Ephedrine — Systematic (IUPAC) name (R*,S*) 2 (methylamino) 1 phenylpro …   Wikipedia

  • Éphédrine — Structure de l éphédrine Général …   Wikipédia en Français

  • Ephedrine — Éphédrine Éphédrine Structure de l éphédrine Général Nom IUPAC (1RS,2SR) 2 (méthylamino) 1 phénylpropan 1 ol …   Wikipédia en Français

  • ÉPHÉDRINE — De formule brute C10H15ON, l’éphédrine est un alcaloïde extrait des rameaux de plantes de la famille des gnétacées, les éphédras, dont il existe de nombreuses variétés; celles de Chine, du Tibet et du Pakistan sont les plus employées; elles… …   Encyclopédie Universelle

  • ephedrine — 1889, named 1887 by Japanese organic chemist Nagai Nagayoshi (1844 1929), from the plant EPHEDRA (Cf. ephedra), from which it was first extracted, + chemical suffix INE (Cf. ine) (2) …   Etymology dictionary

  • ephedrine — [e fe′drin; ] chiefly Brit [, ef′ə drēn΄, ef′ədrin] n. [< ModL Ephedra < L ephedra, the plant horsetail < Gr < ephedros, sitting by < epi , on, near + hedra, a seat (see SIT) + INE3] an alkaloid, C10H15NO, derived from certain… …   English World dictionary

  • ephedrine — /i fed rin, ef i dreen , drin/, n. Pharm. a white, crystalline alkaloid, C10H15N, obtained from a species of Ephedra or synthesized: used in medicine chiefly for the treatment of asthma, hay fever, and colds. [1885 90; < NL Ephedr(a) EPHEDRA +… …   Universalium

  • ephedrine — efedrinas statusas T sritis chemija apibrėžtis alkaloidas formulė C₆H₅CH(OH)CH(CH₃)NHCH₃ atitikmenys: angl. ephedrine rus. эфедрин ryšiai: sinonimas – 1 fenil 2 metilamino 1 propanolis …   Chemijos terminų aiškinamasis žodynas

  • ephedrine — noun Etymology: New Latin Ephedra Date: 1889 a crystalline sympathomimetic alkaloid C10H15NO extracted from Chinese ephedras or synthesized and usually used in the form of a salt especially as a bronchodilator and decongestant …   New Collegiate Dictionary

  • ephedrine — (= (1R,2S) 1 phenyl 1 hydroxy 2 methylaminopropane) Alkaloid from plants of genus Ephedra. Structural analogue of epinephrine (adrenaline) the effects of which it mimics …   Dictionary of molecular biology

  • ephedrine — noun An alkaloid, found in some species of Ephedra shrubs (or prepared synthetically), used as a sympathomimetic drug …   Wiktionary

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