What class of drug is amiodarone?

What class of drug is amiodarone?

Amiodarone is an antiarrhythmic medication—specifically, a Class III antiarrhythmic under the Vaughan Williams classification. It works mainly by prolonging cardiac repolarization, which helps stabilize heart rhythm. [1]

Does amiodarone fit other antiarrhythmic classes too?

Although it is categorized as a Class III drug, amiodarone also has effects that overlap with other antiarrhythmic classes (for example, it can slow electrical conduction and affect sodium and calcium channels in addition to potassium-channel effects). In practice, it’s commonly described as a “Class III antiarrhythmic with additional properties.” [1]

Where is amiodarone used?

Clinically, amiodarone is used for treating certain types of abnormal heart rhythms (arrhythmias), including some ventricular and atrial arrhythmias, especially when rhythm control is difficult with other options. [1]

Sources:
[1] https://www.drugs.com/amiodarone.html