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Drug interactions

Iloperidone + Nabilone

Severity: Moderate

Iloperidone and Nabilone: 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

Iloperidone is a sedating atypical antipsychotic that can cause orthostatic hypotension and QT prolongation. Nabilone adds to drowsiness, dizziness and tachycardia, increasing the risk of falls.

What this interaction means in plain words

Iloperidone and Nabilone 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.

Iloperidone belongs to Central Nervous System; Nabilone belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive CNS depression and additive orthostatic hypotensive effects.

What to do

Monitor sedation and orthostatic blood pressure, especially during dose titration. Counsel patients on rising slowly and avoiding driving until 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 Iloperidone with Nabilone?

MediHelp rates the interaction as moderate. Iloperidone and Nabilone 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. Iloperidone is a sedating atypical antipsychotic that can cause orthostatic hypotension and QT prolongation. Nabilone adds to drowsiness, dizziness and tachycardia, increasing the risk of falls.

How serious is the interaction between Iloperidone and Nabilone?

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 and orthostatic blood pressure, especially during dose titration. Counsel patients on rising slowly and avoiding driving until 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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