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Drug interactions

Ethanol + Haloperidol

Severity: Moderate

Ethanol and Haloperidol: 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

Alcohol and haloperidol both depress the CNS, causing greater drowsiness, impaired coordination and judgment, and possible hypotension. Alcohol may also worsen extrapyramidal side effects and impair adherence.

What this interaction means in plain words

Ethanol and Haloperidol 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: Moderate

Why it happens

Additive CNS depression.

What to do

Advise patients to avoid alcohol during haloperidol therapy and warn about driving and machinery.

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 Ethanol with Haloperidol?

MediHelp rates the interaction as moderate. Ethanol and Haloperidol 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. Alcohol and haloperidol both depress the CNS, causing greater drowsiness, impaired coordination and judgment, and possible hypotension. Alcohol may also worsen extrapyramidal side effects and impair adherence.

How serious is the interaction between Ethanol and Haloperidol?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to avoid alcohol during haloperidol therapy and warn about driving and machinery.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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