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Anti Arrhythmia Agents

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.