Amiodarone: study card

Generic name

Amiodarone

Class

Class III antiarrhythmic

Mechanism

Class III antiarrhythmic with properties of all four Vaughan Williams classes; blocks Na+ channels, antisympathetic.

Used for

Documented, life-threatening recurrent ventricular fibrillation in adults after inadequate response to other antiarrhythmics or inability to tolerate alternatives; Documented, life-threatening recurrent hemodynamically unstable ventricular tachycardia in adults under the same treatment restrictions

Common side effects

Pulmonary infiltrates / fibrosis; Paroxysmal ventricular tachycardia; Congestive heart failure; Elevated liver enzymes

Boxed warning

Pulmonary, hepatic and cardiac toxicity; reserved for life-threatening arrhythmias.

Warnings

Thyroid abnormalities (hypo/hyper); Visual impairment / optic neuropathy; Effects persist weeks after stopping

Interactions

QT-prolonging drugs; Digoxin; Beta-blockers / verapamil / diltiazem

Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.

Label date: 20260716 · For learning, not clinical decisions. US label and brand information; always consult the current source.

Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.