Drug interactions
Amiodarone + Dexamethasone
Severity: Minor
Amiodarone and Dexamethasone: minor 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
Dexamethasone induces CYP3A4 and may lower amiodarone concentrations, while amiodarone may modestly raise dexamethasone exposure. Net effect is usually modest and may reduce antiarrhythmic efficacy with prolonged steroid use.
What this interaction means in plain words
Amiodarone and Dexamethasone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Amiodarone belongs to Cardiovascular; Dexamethasone belongs to Endocrine.
Why it happens
Dexamethasone induces CYP3A4 metabolism of amiodarone, and amiodarone may inhibit P-glycoprotein and CYP3A4 clearance of dexamethasone.
What to do
Monitor rhythm control and steroid effects during extended courses. Steroid-induced hypokalemia should be corrected because of QT concerns with amiodarone.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Amiodarone
- Amiodarone + Amisulpride Contraindicated
- Amiodarone + Arsenic trioxide Contraindicated
- Amiodarone + Dofetilide Contraindicated
- Amiodarone + Dronedarone Contraindicated
- Amiodarone + Droperidol Contraindicated
- Amiodarone + Eliglustat Contraindicated
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Amiodarone with Dexamethasone?
MediHelp rates the interaction as minor. Amiodarone and Dexamethasone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dexamethasone induces CYP3A4 and may lower amiodarone concentrations, while amiodarone may modestly raise dexamethasone exposure. Net effect is usually modest and may reduce antiarrhythmic efficacy with prolonged steroid use.
How serious is the interaction between Amiodarone and Dexamethasone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor rhythm control and steroid effects during extended courses. Steroid-induced hypokalemia should be corrected because of QT concerns with amiodarone.
What other medicines interact with Amiodarone?
MediHelp also lists interactions of Amiodarone with, for example, Amisulpride, Arsenic trioxide, Dofetilide. The full list is on the Amiodarone page.
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