propafenone
Treatment for Premature Ventricular Contractions
Propafenone is a class IC antiarrhythmic agent used to treat Premature Ventricular Contractions by blocking fast sodium channels, thereby slowing conduction velocity and stabilizing cardiac membrane excitability. Its primary effects include suppression of ectopic ventricular activity and reduction of arrhythmia frequency through modulation of cardiac ion currents.