/kwin"i deen', -din/, n. Pharm.
a colorless, crystalline alkaloid, C20H24N2O2, isomeric with quinine, obtained from the bark of certain species of cinchona trees or shrubs, used chiefly to regulate heart rhythm and to treat malaria.
[1830-40; QUIN(INE) + -ID3 + -INE2]

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      drug used in the treatment of abnormal heart rhythms ( arrhythmia) and malaria. Obtained from the bark of the Cinchona tree, quinidine shares many of the pharmacological actions of quinine; i.e., both have antimalarial and fever-reducing activity. The main use of quinidine, however, involves its activity as a myocardial depressant—that is, it depresses the excitability and conduction velocity of nerve impulses and the contractility of the heart muscle. The drug also tends to lower blood pressure. Nausea, vomiting, diarrhea, and skin rash are common reactions to the use of quinidine.

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Universalium. 2010.

Look at other dictionaries:

  • Quinidine — Systematic (IUPAC) name (9S) 6 methoxycinchonan 9 ol …   Wikipedia

  • QUINIDINE — Alcaloïde de formule brute C20H2422, extrait de l’écorce de divers quinquinas (Cinchona ), plantes de la famille des rubiacées; ce sont de petits arbustes découverts à l’état sauvage en Amérique du Sud, plus particulièrement dans la cordillère… …   Encyclopédie Universelle

  • Quinidine — Général Nom IUPAC (9S) 6 méthoxycinchonan 9 ol No CAS …   Wikipédia en Français

  • Quinidine — Quin i*dine, n. (Chem.) An alkaloid isomeric with, and resembling, quinine, found in certain species of cinchona, from which it is extracted as a bitter white crystalline substance; conchinine. It is used somewhat as a febrifuge. [Written also… …   The Collaborative International Dictionary of English

  • quinidine — [kwin′ə dēn΄, kwin′idin] n. [< quina (see QUININE) + ID + INE3] a colorless, crystalline alkaloid, C20H24N2O2, isomeric with and resembling quinine, extracted from cinchona bark …   English World dictionary

  • quinidine — chinidinas statusas T sritis chemija apibrėžtis Chinino stereoizomeras. atitikmenys: angl. quinidine rus. хинидин …   Chemijos terminų aiškinamasis žodynas

  • quinidine — noun Etymology: International Scientific Vocabulary, from quinine Date: 1836 an alkaloid C20H24N2O2 that is stereoisomeric with quinine and is used in the form of its sulfate or gluconate to treat cardiac rhythm irregularities …   New Collegiate Dictionary

  • quinidine — noun An isomer of quinine that is used as an antiarrhythmic agent …   Wiktionary

  • quinidine — β Quinine; one of the alkaloids of cinchona, a stereoisomer of quinine (the C 9 epimer); used as an antimalarial; also used in the treatment of atrial fibrillation and flutter, and paroxysmal ventricular tachycardia. SYN …   Medical dictionary

  • quinidine — (ki ni di n ) s. f. Terme de chimie. Composé isomère de la quinine, mais hydraté, efflorescent, et bien plus dextrogyre que la quinicine …   Dictionnaire de la Langue Française d'Émile Littré

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