Antiarrhythmics

Abstract Antiarrhythmic drugs are the cornerstone of supraventricular and ventricular arrhythmias therapy. Despite the increasing interest in invasive and ablative approaches to treating many arrhythmias, such as atrial fibrillation and ventricular tachycardia, antiarrhythmic drugs are still widely used for both acute management and chronic prophylaxis. Unfortunately, many antiarrhythmic drugs currently available have a narrow therapeutic window and many issues regarding potential serious adverse effects, proarrhythmic properties, and multiorgan toxicity. The current Vaughan Williams classification of antiarrhythmic drugs is shown in a table. The aim this chapter is to provide basic information regarding the most used compounds in clinical practice.