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Drug interactions

Bosentan + Nirogacestat

Severity: Major

Bosentan and Nirogacestat: 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

Nirogacestat is a CYP3A4 substrate, so induction by bosentan may reduce its concentrations and efficacy in desmoid tumors.

What this interaction means in plain words

Bosentan and Nirogacestat 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; Nirogacestat belongs to Oncology.

Evidence level: Low

Why it happens

Bosentan induces CYP3A4, increasing nirogacestat metabolism.

What to do

Avoid the combination where possible and use an alternative to bosentan. If used together, monitor tumor response.

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 Nirogacestat?

MediHelp rates the interaction as major. Bosentan and Nirogacestat 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. Nirogacestat is a CYP3A4 substrate, so induction by bosentan may reduce its concentrations and efficacy in desmoid tumors.

How serious is the interaction between Bosentan and Nirogacestat?

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 where possible and use an alternative to bosentan. If used together, monitor tumor response.

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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