quinidine

[ kwin-i-deen, -din ]

noun

, Pharmacology.

1. a colorless, crystalline alkaloid, C 2 0 H 2 4 N 2 O 2 , 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.

quinidine

/ ˈkwɪnɪˌdiːn /

noun

1. a crystalline alkaloid drug that is an optically active diastereoisomer of quinine: used to treat heart arrhythmias. Formula: C 20 H 24 N 2 O 2

Word History and Origins

Origin of quinidine¹

First recorded in 1830–40; quin(ine) + -id ³ + -ine ²

Example Sentences

It is nothing more than quinidine, or cinchonidine, or a mixture of both.

From Project Gutenberg

Quinidine yields with chromic acid the same decomposition products as quinine.

From Project Gutenberg

This reaction is not characteristic of quinine, for with quinidine one gets the same reaction.

From Project Gutenberg

Dr de Vrij, for instance, found sometimes more than 20% of quinidine in some samples of quinoidine of commerce.

From Project Gutenberg

From the above statement respecting the solubility of quinidine in ether, it appears that the 10 gr.

From Project Gutenberg