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Drug interactions

Buspirone + Dronedarone

Severity: Moderate

Buspirone 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

Dronedarone can increase buspirone concentrations, which may cause dizziness, drowsiness, nausea and headache.

What this interaction means in plain words

Buspirone 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.

Buspirone belongs to Central Nervous System; Dronedarone belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Dronedarone inhibits CYP3A4, the main enzyme responsible for buspirone's extensive first-pass metabolism.

What to do

Start with a low buspirone dose and titrate by response, reducing the dose if adverse effects arise.

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 Buspirone with Dronedarone?

MediHelp rates the interaction as moderate. Buspirone 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. Dronedarone can increase buspirone concentrations, which may cause dizziness, drowsiness, nausea and headache.

How serious is the interaction between Buspirone 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: Start with a low buspirone dose and titrate by response, reducing the dose if adverse effects arise.

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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