Drug class

Antiarrhythmic - Class III

Class III antiarrhythmics are a functional category of cardiovascular medications defined under the Vaughan Williams classification system. Read more about Antiarrhythmic - Class III

79 drugs in this class 59 manufacturers

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Drugs in Antiarrhythmic - Class III

Showing 1–9 of 79 drugs

AMIODARONE HCL

ANTIARRHYTHMIC - CLASS III · LIFE-THREATENING VENTRICULAR TACHYCARDIA ·+2
AHP

TIKOSYN (dofetilide)

ANTIARRHYTHMIC - CLASS III · CARDIOVERSION OF ATRIAL FIBRILLATION ·+2
Parke-Davis Pfizer

AMIODARONE HCL

ANTIARRHYTHMIC - CLASS III · LIFE-THREATENING VENTRICULAR TACHYCARDIA ·+2
SAGENT PHARMACE
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About Antiarrhythmic - Class III.

Class III antiarrhythmics are a functional category of cardiovascular medications defined under the Vaughan Williams classification system.

These agents work predominantly by blocking cardiac potassium channels, which delays phase 3 repolarization and lengthens both the myocardial action potential duration and the effective refractory period without significantly slowing conduction velocity.

Clinically, they are utilized to terminate and prevent various tachyarrhythmias, most notably atrial fibrillation, atrial flutter, and life-threatening ventricular arrhythmias such as ventricular tachycardia and ventricular fibrillation.

Commonly used agents within this therapeutic class include amiodarone, sotalol, dofetilide, and ibutilide.