Arythmol, known generically as propafenone, is a medication primarily used in the management of certain types of cardiac arrhythmias, particularly supraventricular arrhythmias which affect the heart's rhythm. It functions as a class 1C antiarrhythmic agent, which means it works by blocking sodium channels in the heart, thereby slowing the heart's electrical conduction. This action helps to restore normal heart rhythm and maintain a steady heartbeat. Arythmol is available in both immediate-release and extended-release formulations, allowing for flexibility in dosing schedules to meet individual patient needs. It is important for patients taking Arythmol to follow their healthcare provider's instructions closely, as the medication requires careful monitoring to avoid potential side effects and ensure its effectiveness in treating arrhythmias.