The provided video introduces you to the class 3 antiarrhythmic drugs and its mechanism of action in an efficient way. TIMELINE: 0:00 Introduction 0:08 Antiarrhythmic classes 0:36 Class 3 Antiarrhythmic drugs 0:46 Mechanism of action 1:12 Side effect of Amiodarone 3:11 Ibutilide and sotalol side effects 3:21 Quiz