Drug interactions
Dronedarone + Osimertinib
Severity: Major
Dronedarone and Osimertinib: 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
Both agents can prolong the QTc interval, and concurrent use raises the risk of serious ventricular arrhythmias including torsades de pointes. Osimertinib may also cause cardiomyopathy, which compounds the concern.
What this interaction means in plain words
Dronedarone and Osimertinib 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; Osimertinib belongs to Oncology.
Why it happens
Additive QTc prolongation through effects on cardiac repolarization.
What to do
Avoid if an alternative exists; otherwise perform baseline and periodic ECGs and monitor electrolytes, correcting potassium and magnesium.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dronedarone and Osimertinib, 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 Osimertinib
Frequently asked questions
Can I take Dronedarone with Osimertinib?
MediHelp rates the interaction as major. Dronedarone and Osimertinib 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. Both agents can prolong the QTc interval, and concurrent use raises the risk of serious ventricular arrhythmias including torsades de pointes. Osimertinib may also cause cardiomyopathy, which compounds the concern.
How serious is the interaction between Dronedarone and Osimertinib?
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 an alternative exists; otherwise perform baseline and periodic ECGs and monitor electrolytes, correcting potassium and magnesium.
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.
