Drug interactions
Butalbital + Dronedarone
Severity: Moderate
Butalbital and Dronedarone: 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
Butalbital is a barbiturate with enzyme-inducing properties and may reduce dronedarone exposure. Reduced exposure may lead to loss of antiarrhythmic effect.
What this interaction means in plain words
Butalbital and Dronedarone 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.
Why it happens
Induction of CYP3A4 by the barbiturate increases dronedarone metabolism.
What to do
Avoid regular use together. If occasional butalbital use is needed, monitor heart rhythm and rate control for loss of efficacy.
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 Dronedarone
- Adagrasib + Dronedarone Contraindicated
- Amiodarone + Dronedarone Contraindicated
- Arsenic trioxide + Dronedarone Contraindicated
- Artemether / lumefantrine + Dronedarone Contraindicated
- Atazanavir + Dronedarone Contraindicated
- Azithromycin + Dronedarone Contraindicated
Frequently asked questions
Can I take Butalbital with Dronedarone?
MediHelp rates the interaction as moderate. Butalbital and Dronedarone 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. Butalbital is a barbiturate with enzyme-inducing properties and may reduce dronedarone exposure. Reduced exposure may lead to loss of antiarrhythmic effect.
How serious is the interaction between Butalbital and Dronedarone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid regular use together. If occasional butalbital use is needed, monitor heart rhythm and rate control for loss of efficacy.
What other medicines interact with Dronedarone?
MediHelp also lists interactions of Dronedarone with, for example, Adagrasib, Amiodarone, Arsenic trioxide. The full list is on the Dronedarone page.
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