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Drug interactions

Hydroxyzine + Melatonin

Severity: Minor

Hydroxyzine and Melatonin: minor 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

Hydroxyzine is a sedating antihistamine and melatonin also causes drowsiness. Together they may increase somnolence and impair psychomotor performance.

What this interaction means in plain words

Hydroxyzine and Melatonin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Hydroxyzine belongs to Respiratory; Melatonin belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive central nervous system depressant effects.

What to do

Counsel patients to avoid driving or hazardous tasks until response is known, and avoid alcohol or other sedatives.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Hydroxyzine with Melatonin?

MediHelp rates the interaction as minor. Hydroxyzine and Melatonin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Hydroxyzine is a sedating antihistamine and melatonin also causes drowsiness. Together they may increase somnolence and impair psychomotor performance.

How serious is the interaction between Hydroxyzine and Melatonin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients to avoid driving or hazardous tasks until response is known, and avoid alcohol or other sedatives.

What other medicines interact with Melatonin?

MediHelp also lists interactions of Melatonin with, for example, Fluvoxamine, Alfentanil, Belladonna and opium. The full list is on the Melatonin 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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