Hepatotoxicity of amiodarone

Area of Science:

• Cardiology
• Hepatology
• Pharmacology

Background:

• Amiodarone is a vital antiarrhythmic drug for refractory cardiac tachyarrhythmias.
• Significant amiodarone side effects, particularly hepatotoxicity, limit its clinical use.
• Understanding amiodarone's liver injury spectrum is essential for patient safety.

Observation:

• Presents a case of cholestatic hepatitis induced by amiodarone.
• Reviews existing literature on amiodarone-induced liver injury.
• Highlights diverse hepatic manifestations, including steatosis and cirrhosis.

Findings:

• Confirms amiodarone causes various forms of liver injury.
• Includes steatosis, alcoholic hepatitis-like changes, cholestatic hepatitis, and micronodular cirrhosis.
• Establishes a clear link between amiodarone treatment and hepatic damage.

Implications:

• Recommends regular hepatic enzyme level screening for patients on amiodarone.
• Advocates for prompt discontinuation of amiodarone if cholestatic injury or hepatomegaly is suspected.
• Emphasizes the need for vigilant monitoring to mitigate amiodarone's hepatotoxic risks.