Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/9/2025

Management of Amiodarone-Induced Hypothyroidism

  • The American Heart Association recommends increasing levothyroxine dose incrementally to achieve a target TSH in the normal reference range (typically 0.5-2.5 mIU/L) in patients with amiodarone-induced hypothyroidism, with a strength of evidence based on clinical guidelines 1
  • The American College of Cardiology suggests adjusting beta-blocker therapy as needed for rate control in patients with heart failure, with a strength of evidence based on clinical trials 2, 3, 4

Cardiovascular Monitoring

  • The European Society of Cardiology recommends monitoring for signs of levothyroxine overtreatment, particularly in patients with heart failure, including tachycardia, palpitations, or worsening atrial fibrillation, with a strength of evidence based on clinical guidelines 2, 3, 4