Drug interactions
Bexarotene + Bosentan
Severity: Moderate
Bexarotene and Bosentan: 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
Bosentan may lower bexarotene concentrations because bexarotene is metabolised by CYP3A4. This could reduce its efficacy in cutaneous T-cell lymphoma.
What this interaction means in plain words
Bexarotene and Bosentan 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; Bosentan belongs to Miscellaneous.
Why it happens
Bosentan induces CYP3A4, increasing bexarotene clearance.
What to do
Monitor disease response and consider dose adjustment if efficacy decreases. Also monitor bosentan-related liver function as usual.
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 Bosentan
- Bosentan + Cyclosporin Contraindicated
- Bosentan + Cyclosporine Contraindicated
- Bosentan + Glyburide Contraindicated
- Bosentan + Glyburide-metformin Contraindicated
- Bosentan + Lonafarnib Contraindicated
- Bosentan + Sparsentan 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 Bosentan?
MediHelp rates the interaction as moderate. Bexarotene and Bosentan 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. Bosentan may lower bexarotene concentrations because bexarotene is metabolised by CYP3A4. This could reduce its efficacy in cutaneous T-cell lymphoma.
How serious is the interaction between Bexarotene and Bosentan?
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 disease response and consider dose adjustment if efficacy decreases. Also monitor bosentan-related liver function as usual.
What other medicines interact with Bosentan?
MediHelp also lists interactions of Bosentan with, for example, Cyclosporin, Cyclosporine, Glyburide. The full list is on the Bosentan page.
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