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Drug interactions

Brimonidine + Hydroxyzine

Severity: Minor

Brimonidine and Hydroxyzine: 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 markedly sedating, and brimonidine can add drowsiness. The combination may increase sedation and impair alertness.

What this interaction means in plain words

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

Brimonidine belongs to Miscellaneous; Hydroxyzine belongs to Respiratory.

Evidence level: Low

Why it happens

Additive central nervous system depression.

What to do

Warn the patient about drowsiness and advise against driving until the response is known. Lower the hydroxyzine dose if sedation is excessive.

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 Brimonidine with Hydroxyzine?

MediHelp rates the interaction as minor. Brimonidine and Hydroxyzine 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 markedly sedating, and brimonidine can add drowsiness. The combination may increase sedation and impair alertness.

How serious is the interaction between Brimonidine and Hydroxyzine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Warn the patient about drowsiness and advise against driving until the response is known. Lower the hydroxyzine dose if sedation is excessive.

What other medicines interact with Brimonidine?

MediHelp also lists interactions of Brimonidine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Brimonidine page.

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

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