Antiarrhythmic agents are drugs that are commonly used to treat heart rhythm disorders. These drugs work by either suppressing or preventing abnormal electrical activity in the heart. Some other synonyms for antiarrhythmic agents include antiarrhythmic drugs, heart rhythm medications, and heart rhythm regulators. These agents are used to treat different types of heart rhythm disorders, such as atrial fibrillation, ventricular arrhythmia, and supraventricular tachycardia. They can be classified into several classes based on their mechanism of action, including class I, class II, class III, and class IV antiarrhythmics. Antiarrhythmic agents are prescribed by cardiologists and other healthcare professionals to help patients manage their heart rhythm disorders and reduce the risk of complications such as stroke, heart failure, and sudden cardiac death.