| quinidine | <chemistry> 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. Alternative forms: chinidine. Source: Websters Dictionary (01 Mar 1998) |
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| quinidine-3-hydroxylase | <enzyme> Induced by phenobarbital Registry number: EC 1.14.99.- (26 Jun 1999) |
| quinidine polygalacturonate | A salt of quinidine that may be used in place of quinidine sulfate; antiarrhythmic agent. See: quinidine sulfate. See: quinidine. (05 Mar 2000) |
| quinidine sulfate | The salt of quinidine that is customarily administered as a cardiac antiarrhythmic agent. The drug depresses myocardial conduction, contraction, automaticity and contraction; it also by a direct effect impairs conduction through the atrioventricular node. Has vagolytic action that may increase heart rate. See: quinidine. (05 Mar 2000) |