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Drug interactions

Clobazam + Stiripentol

Severity: Moderate

Clobazam and Stiripentol: 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

Stiripentol raises clobazam and norclobazam concentrations, causing greater sedation, somnolence and hypotonia. The effect is well recognised in Dravet syndrome treatment.

What this interaction means in plain words

Clobazam and Stiripentol 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.

Clobazam belongs to Central Nervous System; Stiripentol belongs to Central Nervous System.

Evidence level: High

Why it happens

Inhibition of CYP2C19 and CYP3A4 by stiripentol reduces clearance of clobazam and its active metabolite.

What to do

Monitor for sedation and reduce the clobazam dose if adverse reactions occur.

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 Clobazam with Stiripentol?

MediHelp rates the interaction as moderate. Clobazam and Stiripentol 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. Stiripentol raises clobazam and norclobazam concentrations, causing greater sedation, somnolence and hypotonia. The effect is well recognised in Dravet syndrome treatment.

How serious is the interaction between Clobazam and Stiripentol?

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 sedation and reduce the clobazam dose if adverse reactions occur.

What other medicines interact with Stiripentol?

MediHelp also lists interactions of Stiripentol with, for example, Apalutamide, Clomipramine, Ergotamine. The full list is on the Stiripentol page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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