Propafenone drug class?

What drug class is propafenone in?

Propafenone belongs to the class of antiarrhythmic medicines known as Class 1C sodium channel blockers (used to treat certain heart rhythm disorders) [1].

How does propafenone act in the body?

As a Class 1C antiarrhythmic, propafenone works by slowing electrical conduction through the heart by blocking sodium channels, which helps control abnormal rhythms [1].

What conditions is it usually used for?

Propafenone is used for certain types of supraventricular and ventricular arrhythmias, such as rhythm disturbances where slowing conduction can help stabilize the heartbeat (for example, some cases of atrial fibrillation/flutter and paroxysmal supraventricular tachycardia) [1].

Is propafenone related to other antiarrhythmic classes?

Yes. Like other antiarrhythmics, it is grouped by electrophysiologic effects. Propafenone is specifically classified as Class 1C, so it is not the same as:
- Class 1A (different channel effects),
- Class 1B (different channel effects),
- Beta-blockers (Class II),
- Calcium channel blockers (Class IV),
- Amiodarone/sotalol (often discussed under other classes) [1].

Sources

1