Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.

Descriptor ID	D000889
MeSH Number(s)	D27.505.954.411.097
Concept/Terms	Anti-Arrhythmia Agents Anti-Arrhythmia Agents Agents, Anti-Arrhythmia Anti Arrhythmia Agents Antiarrhythmic Drugs Drugs, Antiarrhythmic Antiarrhythmia Agents Agents, Antiarrhythmia Antiarrhythmia Drugs Drugs, Antiarrhythmia Anti-Arrhythmia Drugs Anti Arrhythmia Drugs Drugs, Anti-Arrhythmia Anti-Arrhythmics Anti Arrhythmics Cardiac Depressants Cardiac Depressants Depressants, Cardiac Myocardial Depressants Depressants, Myocardial Antifibrillatory Agents Antifibrillatory Agents Agents, Antifibrillatory

Below are MeSH descriptors whose meaning is more general than "Anti-Arrhythmia Agents".

Below are MeSH descriptors whose meaning is related to "Anti-Arrhythmia Agents".

Below are MeSH descriptors whose meaning is more specific than "Anti-Arrhythmia Agents".