Drug interactions
Dronedarone + Ribociclib
Severity: Contraindicated
Dronedarone and Ribociclib: contraindicated 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
Ribociclib prolongs QT in a dose-dependent manner, and dronedarone adds to this effect. Ribociclib is also a CYP3A4 inhibitor and may raise dronedarone exposure, further increasing arrhythmia risk.
What this interaction means in plain words
Dronedarone and Ribociclib are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Dronedarone belongs to Cardiovascular; Ribociclib belongs to Oncology.
Why it happens
Additive QT prolongation combined with CYP3A4 inhibition by ribociclib increasing dronedarone levels.
What to do
Do not combine; use an alternative antiarrhythmic or a different CDK4/6 inhibitor with lower QT risk.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dronedarone and Ribociclib, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
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 Ribociclib
- Amiodarone + Ribociclib Contraindicated
- Cisapride + Ribociclib Contraindicated
- Dofetilide + Ribociclib Contraindicated
- Flibanserin + Ribociclib Contraindicated
- Ibutilide + Ribociclib Contraindicated
- Levoketoconazole + Ribociclib Contraindicated
Frequently asked questions
Can I take Dronedarone with Ribociclib?
MediHelp rates the interaction as contraindicated. Dronedarone and Ribociclib are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Ribociclib prolongs QT in a dose-dependent manner, and dronedarone adds to this effect. Ribociclib is also a CYP3A4 inhibitor and may raise dronedarone exposure, further increasing arrhythmia risk.
How serious is the interaction between Dronedarone and Ribociclib?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not combine; use an alternative antiarrhythmic or a different CDK4/6 inhibitor with lower QT risk.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
