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Drug interactions

Dexchlorpheniramine + Nabilone

Severity: Moderate

Dexchlorpheniramine 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

Dexchlorpheniramine is a sedating first-generation antihistamine with anticholinergic effects. With nabilone it can increase drowsiness, dizziness and impair concentration and driving ability.

What this interaction means in plain words

Dexchlorpheniramine 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.

Dexchlorpheniramine belongs to Respiratory; Nabilone belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive central nervous system depression with anticholinergic contribution.

What to do

Counsel on sedation and avoid driving; consider a non-sedating antihistamine if appropriate.

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 Dexchlorpheniramine with Nabilone?

MediHelp rates the interaction as moderate. Dexchlorpheniramine 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. Dexchlorpheniramine is a sedating first-generation antihistamine with anticholinergic effects. With nabilone it can increase drowsiness, dizziness and impair concentration and driving ability.

How serious is the interaction between Dexchlorpheniramine 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: Counsel on sedation and avoid driving; consider a non-sedating antihistamine if appropriate.

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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