Which beta blocker is often prescribed for arrhythmias?

Sotalol is frequently prescribed for arrhythmias due to its class III antiarrhythmic properties, which make it particularly effective in managing both atrial and ventricular arrhythmias. Unlike some other beta blockers, sotalol not only blocks beta-adrenergic receptors but also prolongs the action potential duration and refractory period in cardiac tissues. This dual action helps normalize heart rhythm and prevents further arrhythmias from occurring.

While other beta blockers like atenolol and propranolol are also utilized in certain cardiac conditions, their primary uses are more focused on hypertension and overall heart rate control rather than directly targeting arrhythmias. Carvedilol, although a beta blocker with additional properties, is mainly used for heart failure and systolic heart failure management rather than being specifically indicated for arrhythmias. Therefore, sotalol is the preferred choice for treating arrhythmias due to its targeted effects in electrical conduction and rhythm stabilization in the heart.