Antiarrhythmic Agent

**Semantic type:** Chemical Viewed Functionally

**Definition:** Agents used for the treatment or prevention of cardiac arrhythmias; they may effect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers.

**Synonyms:** - Anti-arrhythmic Agent - Cardiac Depressant