Drug interactions
Donepezil + Vandetanib
Severity: Contraindicated
Donepezil and Vandetanib: 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
Both drugs can prolong the QT interval, and vandetanib carries a boxed warning for QT prolongation, torsades de pointes and sudden death. Concurrent use with other QT-prolonging drugs should be avoided.
What this interaction means in plain words
Donepezil and Vandetanib 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.
Donepezil belongs to Central Nervous System; Vandetanib belongs to Oncology.
Why it happens
Additive pharmacodynamic QT prolongation.
What to do
Avoid the combination and use an alternative to donepezil. If vandetanib is essential, monitor ECG and electrolytes closely.
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?
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Other interactions of Donepezil
- Donepezil + Dronedarone Contraindicated
- Donepezil + Pimozide Contraindicated
- Donepezil + Thioridazine Contraindicated
- Amiodarone + Donepezil Major
- Amisulpride + Donepezil Major
- Amoxapine + Donepezil Major
Other interactions of Vandetanib
- Amiodarone + Vandetanib Contraindicated
- Amisulpride + Vandetanib Contraindicated
- Amitriptyline + Vandetanib Contraindicated
- Anagrelide + Vandetanib Contraindicated
- Asenapine + Vandetanib Contraindicated
- Chloroquine + Vandetanib Contraindicated
Frequently asked questions
Can I take Donepezil with Vandetanib?
MediHelp rates the interaction as contraindicated. Donepezil and Vandetanib 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. Both drugs can prolong the QT interval, and vandetanib carries a boxed warning for QT prolongation, torsades de pointes and sudden death. Concurrent use with other QT-prolonging drugs should be avoided.
How serious is the interaction between Donepezil and Vandetanib?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use an alternative to donepezil. If vandetanib is essential, monitor ECG and electrolytes closely.
What other medicines interact with Donepezil?
MediHelp also lists interactions of Donepezil with, for example, Dronedarone, Pimozide, Thioridazine. The full list is on the Donepezil page.
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