Drug interactions
Amiodarone + Cannabidiol
Severity: Moderate
Amiodarone and Cannabidiol: 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
Cannabidiol inhibits several CYP enzymes including CYP2C19 and CYP2C8, and amiodarone may raise cannabidiol levels via CYP3A4 inhibition. Both drugs may reach higher concentrations, increasing adverse effects such as sedation, liver enzyme elevation, bradycardia or QT effects.
What this interaction means in plain words
Amiodarone and Cannabidiol 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; Cannabidiol belongs to Central Nervous System.
Why it happens
Bidirectional inhibition of CYP-mediated metabolism (CYP3A4 for cannabidiol; CYP2C8/2C19 for amiodarone).
What to do
Monitor for sedation, liver function and ECG changes, and consider reducing the cannabidiol dose if adverse effects appear. Adjust amiodarone based on heart rate, QTc and clinical response.
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?
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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 Cannabidiol
- Cannabidiol + Phenytoin Major
- Cannabidiol + Sodium valproate Major
- Cannabidiol + Tacrolimus Major
- Abiraterone + Cannabidiol Moderate
- Alogliptin-pioglitazone + Cannabidiol Moderate
- Amobarbital + Cannabidiol Moderate
Frequently asked questions
Can I take Amiodarone with Cannabidiol?
MediHelp rates the interaction as moderate. Amiodarone and Cannabidiol 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. Cannabidiol inhibits several CYP enzymes including CYP2C19 and CYP2C8, and amiodarone may raise cannabidiol levels via CYP3A4 inhibition. Both drugs may reach higher concentrations, increasing adverse effects such as sedation, liver enzyme elevation, bradycardia or QT effects.
How serious is the interaction between Amiodarone and Cannabidiol?
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 for sedation, liver function and ECG changes, and consider reducing the cannabidiol dose if adverse effects appear. Adjust amiodarone based on heart rate, QTc and clinical response.
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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