Drug interactions
Dronedarone + Ivosidenib
Severity: Major
Dronedarone and Ivosidenib: major interaction.
Last updated Sources: US FDA label
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 drugs prolong the QT interval, so combined use raises the risk of torsades de pointes. Ivosidenib is also a CYP3A4 inducer that may lower dronedarone exposure.
What this interaction means in plain words
Dronedarone and Ivosidenib 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; Ivosidenib belongs to Oncology.
Why it happens
Additive prolongation of cardiac repolarization; ivosidenib also induces CYP3A4, which may reduce dronedarone levels.
What to do
Avoid the combination where possible. If it is necessary, monitor ECG and electrolytes (potassium, magnesium) regularly and correct abnormalities.
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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References
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 Ivosidenib
- Alfuzosin + Ivosidenib Major
- Amiodarone + Ivosidenib Major
- Amisulpride + Ivosidenib Major
- Amitriptyline + Ivosidenib Major
- Amobarbital + Ivosidenib Major
- Anagrelide + Ivosidenib Major
Frequently asked questions
Can I take Dronedarone with Ivosidenib?
MediHelp rates the interaction as major. Dronedarone and Ivosidenib 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 drugs prolong the QT interval, so combined use raises the risk of torsades de pointes. Ivosidenib is also a CYP3A4 inducer that may lower dronedarone exposure.
How serious is the interaction between Dronedarone and Ivosidenib?
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 the combination where possible. If it is necessary, monitor ECG and electrolytes (potassium, magnesium) regularly and correct abnormalities.
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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