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Drug interactions

Amiodarone + Prednisone

Severity: Moderate

Amiodarone and Prednisone: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Corticosteroids can cause hypokalemia, which increases the risk of QT prolongation and torsades de pointes with amiodarone. Amiodarone may also modestly raise corticosteroid exposure through P-glycoprotein or CYP3A4 inhibition.

What this interaction means in plain words

Amiodarone and Prednisone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Amiodarone belongs to Cardiovascular; Prednisone belongs to Endocrine.

Evidence level: Low

Why it happens

Corticosteroid-induced hypokalemia adds to amiodarone QT effects, with possible minor pharmacokinetic inhibition by amiodarone.

What to do

Monitor serum potassium and magnesium and the ECG QT interval, and correct electrolyte disturbances promptly.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Amiodarone with Prednisone?

MediHelp rates the interaction as moderate. Amiodarone and Prednisone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Corticosteroids can cause hypokalemia, which increases the risk of QT prolongation and torsades de pointes with amiodarone. Amiodarone may also modestly raise corticosteroid exposure through P-glycoprotein or CYP3A4 inhibition.

How serious is the interaction between Amiodarone and Prednisone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium and magnesium and the ECG QT interval, and correct electrolyte disturbances promptly.

What other medicines interact with Prednisone?

MediHelp also lists interactions of Prednisone with, for example, Bcg vaccine live, Measles vaccine, Mifepristone. The full list is on the Prednisone page.

Full monographs, dosing and an interaction checker in the MediHelp app

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