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Drug interactions

Nabilone + Pimozide

Severity: Moderate

Nabilone and Pimozide: 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

Both agents cause sedation, so combining them can increase drowsiness and impair alertness and coordination. Pimozide also has cardiac effects, and nabilone-related tachycardia and blood pressure changes may be unwelcome in this setting.

What this interaction means in plain words

Nabilone and Pimozide 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 belongs to Gastrointestinal Tract; Pimozide belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive CNS depression with overlapping cardiovascular effects.

What to do

Monitor sedation, heart rate and blood pressure, and review ECG and electrolytes per usual pimozide monitoring. Advise against driving 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 Pimozide?

MediHelp rates the interaction as moderate. Nabilone and Pimozide 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. Both agents cause sedation, so combining them can increase drowsiness and impair alertness and coordination. Pimozide also has cardiac effects, and nabilone-related tachycardia and blood pressure changes may be unwelcome in this setting.

How serious is the interaction between Nabilone and Pimozide?

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 sedation, heart rate and blood pressure, and review ECG and electrolytes per usual pimozide monitoring. Advise against driving 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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