Anti Arrhythmics

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.