May 20, 2024 · Amiodarone is used to treat ventricular tachycardia or ventricular fibrillation. Amiodarone is for use only in treating life-threatening heart rhythm disorders. Amiodarone can cause dangerous side effects on your heart, liver, lungs, or vision.

Amiodarone is categorized as a class III antiarrhythmic agent, and prolongs phase 3 of the cardiac action potential, the repolarization phase where there is normally decreased calcium permeability and increased potassium permeability. It has numerous other effects, however, including actions that are similar to those of antiarrhythmic classes ...

Amiodarone is a class III antiarrhythmic indicated for the treatment of recurrent hemodynamically unstable ventricular tachycardia and recurrent ventricular fibrillation.

Nov 12, 2023 · Amiodarone belongs to the class III antiarrhythmic drugs. Similar to other drugs in this class, the primary mechanism of amiodarone involves the inhibition of potassium rectifier currents responsible for repolarizing the heart during phase 3 of the cardiac action potential.

Amiodarone, because of its Class IV effects, can cause bradycardia and atrioventricular block, and therefore is contraindicated in patients with heart block or sinoatrial node dysfunction. Revised 11/30/2023.

Amiodarone is in a class of medications called antiarrhythmics. It works by relaxing overactive heart muscles. How should this medicine be used? Amiodarone comes as a tablet to take by mouth. It is usually taken once or twice a day.

Jan 8, 2025 · Amiodarone is considered a class III antiarrhythmic drug, but it possesses electrophysiologic characteristics of all four Vaughan Williams classes. Like class I drugs, amiodarone blocks sodium channels at rapid pacing frequencies, and like class II drugs, amiodarone exerts a noncompetitive antisympathetic action.