Amiodarone, an anti-arrhythmic drug, is structurally similar to thyroxine and may cause either under- or overactivity of the thyroid.

They are relatively rare and can result from the action of anti-arrhythmic drugs.

These are called anti-arrhythmic drugs.

Dofetilide is known as an anti-arrhythmic drug.

Doctors liberally prescribed new anti-arrhythmic drugs.

Studies show that anti-arrhythmic drugs were overprescribed and killed at least 50,000 patients.

Amiodarone is known as an anti-arrhythmic drug.

Mexiletine is known as an anti-arrhythmic drug.

For many years, cardiologists used anti-arrhythmic drugs and electrocardiograms as surrogate markers for the underlying cause.

Flecainide (a class 1C cardiac anti-arrhythmic drug)