Drug interactions
Cabozantinib + Carbamazepine
Severity: Major
Cabozantinib and Carbamazepine: 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
Carbamazepine can reduce cabozantinib exposure and may reduce anticancer efficacy.
What this interaction means in plain words
Cabozantinib and Carbamazepine 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.
Cabozantinib belongs to Oncology; Carbamazepine belongs to Central Nervous System.
Why it happens
Carbamazepine induces CYP3A4, increasing cabozantinib clearance.
What to do
Avoid strong CYP3A4 inducers; if required, increase the cabozantinib dose per labeling and return to the prior dose 2 to 3 days after stopping the inducer.
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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Other interactions of Carbamazepine
- Artemether / lumefantrine + Carbamazepine Contraindicated
- Cabotegravir + Carbamazepine Contraindicated
- Carbamazepine + Delamanid Contraindicated
- Carbamazepine + Dienogest / estradiol valerate Contraindicated
- Carbamazepine + Doravirine Contraindicated
- Carbamazepine + Elbasvir / grazoprevir Contraindicated
Other interactions of Cabozantinib
Frequently asked questions
Can I take Cabozantinib with Carbamazepine?
MediHelp rates the interaction as major. Cabozantinib and Carbamazepine 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. Carbamazepine can reduce cabozantinib exposure and may reduce anticancer efficacy.
How serious is the interaction between Cabozantinib and Carbamazepine?
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 strong CYP3A4 inducers; if required, increase the cabozantinib dose per labeling and return to the prior dose 2 to 3 days after stopping the inducer.
What other medicines interact with Carbamazepine?
MediHelp also lists interactions of Carbamazepine with, for example, Artemether / lumefantrine, Cabotegravir, Delamanid. The full list is on the Carbamazepine page.
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