| ajmaline | <chemical> An alkaloid found in the root of rauwolfia serpentina, among other plant sources. It is a class ia antiarrhythmic agent that apparently acts by changing the shape and threshold of cardiac action potentials. Pharmacological action: anti-arrhythmia agents. Chemical name: Ajmalan-17,21-diol, (17R,21alpha)- (12 Dec 1998) |
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