What should be done if the heart rate becomes slow after taking amiodarone?

First, the patient’s heart rate should be continuously monitored. One of the adverse effects of amiodarone is bradycardia, resulting from the drug’s effect on conduction velocity in the sinoatrial (SA) and atrioventricular (AV) nodes. Severe bradycardia may compromise cerebral perfusion, potentially leading to syncope, falls, or other complications. Optimizing lifestyle habits—such as maintaining a balanced diet, engaging in regular physical activity, and ensuring adequate rest—can help reduce cardiac workload and may alleviate bradycardia symptoms. Under physician guidance, dose adjustment of amiodarone or switching to an alternative antiarrhythmic agent may be necessary. For persistent, irreversible amiodarone-induced bradycardia, pacemaker implantation may be considered. A pacemaker delivers electrical impulses to stimulate myocardial contraction and correct bradycardia. If clinically significant manifestations of severe bradycardia—such as syncope or falls—occur, immediate medical attention is required, and emergency interventions—including electrical cardioversion—may be warranted.