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Drug interactions

Haloperidol + Olopatadine intranasal

Severity: Moderate

Haloperidol and Olopatadine intranasal: 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

Intranasal olopatadine can cause somnolence and haloperidol is also sedating, so psychomotor impairment may be additive. This can affect driving and daily activities.

What this interaction means in plain words

Haloperidol and Olopatadine intranasal 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 central nervous system depression.

What to do

Counsel patients about drowsiness and avoiding driving or hazardous tasks. Consider a less sedating nasal antihistamine alternative or steroid spray if sedation is problematic.

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 Haloperidol with Olopatadine intranasal?

MediHelp rates the interaction as moderate. Haloperidol and Olopatadine intranasal 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. Intranasal olopatadine can cause somnolence and haloperidol is also sedating, so psychomotor impairment may be additive. This can affect driving and daily activities.

How serious is the interaction between Haloperidol and Olopatadine intranasal?

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 patients about drowsiness and avoiding driving or hazardous tasks. Consider a less sedating nasal antihistamine alternative or steroid spray if sedation is problematic.

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.

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