What is the primary risk associated with administering amiodarone?

The primary risk associated with administering amiodarone is bradycardia, a condition characterized by a slower than normal heart rate. Amiodarone is an antiarrhythmic medication used to treat various types of cardiac arrhythmias, including atrial fibrillation and ventricular tachycardia. While it can be very effective in stabilizing heart rhythms, one of its well-documented side effects is its ability to decrease heart rate. This occurs due to its effects on the conduction system of the heart and may lead to symptoms such as dizziness, fatigue, or even syncope in severe cases.

It's important for healthcare practitioners to monitor the heart rate and rhythm closely when administering amiodarone, particularly in patients who may already be predisposed to bradycardia or those taking other medications that can further lower heart rate. This vigilance helps prevent complications arising from excessively low heart rates.