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Drug interactions

Bosentan + Sonidegib

Severity: Major

Bosentan and Sonidegib: 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

Bosentan may reduce sonidegib exposure and thereby efficacy in basal cell carcinoma. Moderate CYP3A inducers have been shown to lower sonidegib levels.

What this interaction means in plain words

Bosentan and Sonidegib 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.

Bosentan belongs to Miscellaneous; Sonidegib belongs to Oncology.

Evidence level: Moderate

Why it happens

Bosentan induces CYP3A4, increasing the metabolism of sonidegib.

What to do

Avoid the combination, as sonidegib labeling advises against moderate and strong CYP3A inducers. Use an alternative to bosentan where possible.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Bosentan with Sonidegib?

MediHelp rates the interaction as major. Bosentan and Sonidegib 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. Bosentan may reduce sonidegib exposure and thereby efficacy in basal cell carcinoma. Moderate CYP3A inducers have been shown to lower sonidegib levels.

How serious is the interaction between Bosentan and Sonidegib?

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 the combination, as sonidegib labeling advises against moderate and strong CYP3A inducers. Use an alternative to bosentan where possible.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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