Drug interactions
Cabozantinib + Dexamethasone
Severity: Moderate
Cabozantinib and Dexamethasone: moderate 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
Dexamethasone may modestly reduce cabozantinib exposure through CYP3A4 induction. This could reduce anticancer efficacy, although the labeled dose adjustments apply to strong inducers.
What this interaction means in plain words
Cabozantinib and Dexamethasone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Cabozantinib belongs to Oncology; Dexamethasone belongs to Endocrine.
Why it happens
Dexamethasone induces CYP3A4, increasing cabozantinib metabolism.
What to do
Monitor tumor response and tolerability. Use the labeled cabozantinib dose increase only if a strong inducer is truly required, and reduce back after the inducer is stopped.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Other interactions of Cabozantinib
Frequently asked questions
Can I take Cabozantinib with Dexamethasone?
MediHelp rates the interaction as moderate. Cabozantinib and Dexamethasone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Dexamethasone may modestly reduce cabozantinib exposure through CYP3A4 induction. This could reduce anticancer efficacy, although the labeled dose adjustments apply to strong inducers.
How serious is the interaction between Cabozantinib and Dexamethasone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor tumor response and tolerability. Use the labeled cabozantinib dose increase only if a strong inducer is truly required, and reduce back after the inducer is stopped.
What other medicines interact with Dexamethasone?
MediHelp also lists interactions of Dexamethasone with, for example, Bcg vaccine live, Mifepristone, Rilpivirine. The full list is on the Dexamethasone page.
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