Definitions for quinidineˈkwɪn ɪˌdin, -dɪn

This page provides all possible meanings and translations of the word quinidine

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. quinidine, Quinidex, Quinora(noun)

    cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias

WiktionaryRate this definition:(0.00 / 0 votes)

  1. quinidine(Noun)

    An isomer of quinine that is used as an antiarrhythmic agent

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. Quinidine(noun)

    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

FreebaseRate this definition:(0.00 / 0 votes)

  1. Quinidine

    Quinidine is a pharmaceutical agent that acts as a class I antiarrhythmic agent in the heart. It is a stereoisomer of quinine, originally derived from the bark of the cinchona tree. The drug causes increased action potential duration, as well as a prolonged QT interval.

U.S. National Library of MedicineRate this definition:(0.00 / 0 votes)

  1. Quinidine

    An optical isomer of quinine, extracted from the bark of the Cinchona tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular action potential, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.

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