Drug interactions
Clomipramine + Vandetanib
Severity: Contraindicated
Clomipramine 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
Vandetanib markedly prolongs the QT interval and has a boxed warning for torsades de pointes. Adding clomipramine, which also prolongs QT, further raises the risk of life-threatening arrhythmia.
What this interaction means in plain words
Clomipramine 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.
Clomipramine belongs to Central Nervous System; Vandetanib belongs to Oncology.
Why it happens
Additive prolongation of cardiac repolarization.
What to do
Avoid the combination and choose a non-QT-prolonging antidepressant. If unavoidable, use frequent ECG and electrolyte monitoring.
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 Clomipramine
- Arsenic trioxide + Clomipramine Contraindicated
- Clomipramine + Dofetilide Contraindicated
- Clomipramine + Droperidol Contraindicated
- Clomipramine + Isocarboxazid Contraindicated
- Clomipramine + Methylene blue Contraindicated
- Clomipramine + Pentamidine Contraindicated
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 Clomipramine with Vandetanib?
MediHelp rates the interaction as contraindicated. Clomipramine 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. Vandetanib markedly prolongs the QT interval and has a boxed warning for torsades de pointes. Adding clomipramine, which also prolongs QT, further raises the risk of life-threatening arrhythmia.
How serious is the interaction between Clomipramine 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 choose a non-QT-prolonging antidepressant. If unavoidable, use frequent ECG and electrolyte monitoring.
What other medicines interact with Clomipramine?
MediHelp also lists interactions of Clomipramine with, for example, Arsenic trioxide, Dofetilide, Droperidol. The full list is on the Clomipramine page.
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