Amiodarone

Amiodarone is an antiarrhythmic medicine used to control dangerous heart rhythms. It is effective, but it builds up in body tissues over months and has a long list of serious side effects, which is why its label is unusually restrictive.

The amiodarone tablet label carries a boxed warning for pulmonary, hepatic, and cardiac toxicity, tells doctors to reserve the drug for patients with the indicated life-threatening arrhythmias, and says to use alternative agents first. The approved uses in the tablet label are recurrent ventricular fibrillation and recurrent hemodynamically unstable ventricular tachycardia, and treatment should start under hospital or specialist supervision. Other risks include thyroid problems, vision changes, and skin discoloration.

The lung damage, often called amiodarone pulmonary toxicity, can include inflammation and scarring (pulmonary fibrosis) and can be fatal. Because the drug is widely prescribed for atrial fibrillation, a common rhythm problem that is not among the tablet label's approved indications, legal claims have raised questions about off-label use and whether patients received adequate warnings.

A claim would generally need prescription and pharmacy records, the reason the drug was prescribed, and a diagnosis of a toxicity such as lung scarring or liver injury. Do not stop amiodarone on your own, since stopping suddenly can be dangerous. For related topics, see our term page on off-label use, plus class action vs. mass tort and how to sue a company. This page is general information, not medical advice.