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Drug interactions

Bosentan + Perampanel

Severity: Moderate

Bosentan and Perampanel: 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

Perampanel is cleared mainly by CYP3A4, and bosentan induces this enzyme, which may lower perampanel levels. Reduced exposure could lead to loss of seizure control.

What this interaction means in plain words

Bosentan and Perampanel 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 belongs to Miscellaneous; Perampanel belongs to Central Nervous System.

Evidence level: Low

Why it happens

Bosentan induces CYP3A4, increasing perampanel clearance.

What to do

Monitor seizure control and consider a perampanel dose increase if efficacy falls. Reassess dosing if bosentan 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?

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 Perampanel?

MediHelp rates the interaction as moderate. Bosentan and Perampanel 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. Perampanel is cleared mainly by CYP3A4, and bosentan induces this enzyme, which may lower perampanel levels. Reduced exposure could lead to loss of seizure control.

How serious is the interaction between Bosentan and Perampanel?

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 seizure control and consider a perampanel dose increase if efficacy falls. Reassess dosing if bosentan is stopped.

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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