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Drug interactions

Clobazam + Haloperidol

Severity: Moderate

Clobazam and Haloperidol: 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

Clobazam is a weak CYP2D6 inhibitor and haloperidol is partly metabolized by CYP2D6, so haloperidol levels may rise modestly. Both also cause sedation, so combined use may add to CNS depression.

What this interaction means in plain words

Clobazam and Haloperidol 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; Haloperidol belongs to Central Nervous System.

Evidence level: Low

Why it happens

Weak CYP2D6 inhibition by clobazam and additive CNS depression.

What to do

Monitor for haloperidol adverse effects such as extrapyramidal symptoms and sedation, and reduce the haloperidol dose if needed.

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 Haloperidol?

MediHelp rates the interaction as moderate. Clobazam and Haloperidol 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 is a weak CYP2D6 inhibitor and haloperidol is partly metabolized by CYP2D6, so haloperidol levels may rise modestly. Both also cause sedation, so combined use may add to CNS depression.

How serious is the interaction between Clobazam and Haloperidol?

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 haloperidol adverse effects such as extrapyramidal symptoms and sedation, and reduce the haloperidol dose if needed.

What other medicines interact with Haloperidol?

MediHelp also lists interactions of Haloperidol with, for example, Dofetilide, Dronedarone, Ibutilide. The full list is on the Haloperidol 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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