What is a potential adverse effect of Amiodarone?

Amiodarone is an antiarrhythmic medication commonly used to treat certain types of cardiac dysrhythmias. One potential adverse effect of amiodarone is bradycardia, which refers to an abnormally slow heart rate (typically less than 60 beats per minute in adults). Amiodarone works by prolonging the action potential and refractory period in the cardiac cycle, which can lead to decreased heart rate due to its effects on the conduction system of the heart.

Bradycardia can be particularly concerning for patients with pre-existing heart conditions or those on other medications that can also lower heart rate. This side effect is something healthcare professionals monitor for in patients receiving amiodarone therapy, as significant bradycardia may necessitate dose adjustment or more severe interventions.

Other options, while relevant in a broader context of cardiac health and drug effects, do not represent the most common or pertinent adverse effect associated specifically with amiodarone.