Sotalar 40 Tablet 10 belongs to a class of drugs known as 'anti-arrhythmia' drugs, which are primarily used to treat arrhythmia (irregular heartbeat) or any other heart condition associated with an irregular heartbeat, such as fibrillation (irregular heartbeat) and tachycardia (too fast heartbeat). Arrhythmia is a problem caused by the rate at which the heart beats.Disclaimer:For More Information Contact Your Physician