Drug interactions
Dronedarone + Venetoclax
Severity: Major
Dronedarone and Venetoclax: major 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 inhibits CYP3A4 and P-gp, which can raise venetoclax exposure. This increases the risk of neutropenia and tumor lysis syndrome, especially during dose ramp-up.
What this interaction means in plain words
Dronedarone and Venetoclax can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Dronedarone belongs to Cardiovascular; Venetoclax belongs to Miscellaneous.
Why it happens
Inhibition of CYP3A4 and P-glycoprotein reduces venetoclax clearance and increases absorption.
What to do
Avoid if possible; otherwise reduce the venetoclax dose by at least 50% and monitor closely for TLS and neutropenia.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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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
Other interactions of Venetoclax
- Clarithromycin + Venetoclax Contraindicated
- Itraconazole + Venetoclax Contraindicated
- Ketoconazole + Venetoclax Contraindicated
- Posaconazole + Venetoclax Contraindicated
- Venetoclax + Voriconazole Contraindicated
- Amiodarone + Venetoclax Major
Frequently asked questions
Can I take Dronedarone with Venetoclax?
MediHelp rates the interaction as major. Dronedarone and Venetoclax can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Dronedarone inhibits CYP3A4 and P-gp, which can raise venetoclax exposure. This increases the risk of neutropenia and tumor lysis syndrome, especially during dose ramp-up.
How serious is the interaction between Dronedarone and Venetoclax?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible; otherwise reduce the venetoclax dose by at least 50% and monitor closely for TLS and neutropenia.
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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