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Drug interactions

Nabilone + Thiothixene

Severity: Moderate

Nabilone and Thiothixene: 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

Nabilone and the antipsychotic thiothixene both cause sedation, so combined use can increase drowsiness and reduce alertness. Nabilone can also cause tachycardia and orthostatic hypotension, which may add to the antipsychotic's effects.

What this interaction means in plain words

Nabilone and Thiothixene 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.

Evidence level: Low

Why it happens

Additive CNS depressant effects of a cannabinoid agonist and a sedating dopamine/histamine-blocking antipsychotic.

What to do

Monitor for oversedation and orthostatic hypotension, and titrate doses slowly. Advise patients to avoid driving or operating machinery until the response is known.

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 Nabilone with Thiothixene?

MediHelp rates the interaction as moderate. Nabilone and Thiothixene 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. Nabilone and the antipsychotic thiothixene both cause sedation, so combined use can increase drowsiness and reduce alertness. Nabilone can also cause tachycardia and orthostatic hypotension, which may add to the antipsychotic's effects.

How serious is the interaction between Nabilone and Thiothixene?

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 oversedation and orthostatic hypotension, and titrate doses slowly. Advise patients to avoid driving or operating machinery until the response is known.

What other medicines interact with Nabilone?

MediHelp also lists interactions of Nabilone with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Nabilone 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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