Drug interactions
Bexarotene + Dexamethasone
Severity: Moderate
Bexarotene 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 is a CYP3A4 inducer and bexarotene is metabolized by CYP3A4, so bexarotene concentrations may fall. This could reduce antineoplastic effect.
What this interaction means in plain words
Bexarotene 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.
Bexarotene belongs to Oncology; Dexamethasone belongs to Endocrine.
Why it happens
Induction of CYP3A4 by dexamethasone increasing bexarotene metabolism.
What to do
Monitor for reduced bexarotene response and lipid or thyroid changes; adjust bexarotene according to efficacy and tolerability.
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 Bexarotene
- Bexarotene + Gemfibrozil Major
- Bexarotene + Lorlatinib Major
- Alogliptin-pioglitazone + Bexarotene Moderate
- Amobarbital + Bexarotene Moderate
- Aprepitant + Bexarotene Moderate
- Axitinib + Bexarotene Moderate
Frequently asked questions
Can I take Bexarotene with Dexamethasone?
MediHelp rates the interaction as moderate. Bexarotene 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 is a CYP3A4 inducer and bexarotene is metabolized by CYP3A4, so bexarotene concentrations may fall. This could reduce antineoplastic effect.
How serious is the interaction between Bexarotene 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 for reduced bexarotene response and lipid or thyroid changes; adjust bexarotene according to efficacy and tolerability.
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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