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Drug interactions

Hydroxyzine + Modafinil

Severity: Minor

Hydroxyzine and Modafinil: 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 modafinil is wake-promoting, so their effects counteract each other. Modafinil may mask sleepiness without fully reversing psychomotor impairment.

What this interaction means in plain words

Hydroxyzine and Modafinil 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; Modafinil belongs to Central Nervous System.

Evidence level: Low

Why it happens

Opposing pharmacodynamic effects on CNS arousal.

What to do

Counsel on driving and machinery risks, and consider a non-sedating alternative if sedation is troublesome.

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 Modafinil?

MediHelp rates the interaction as minor. Hydroxyzine and Modafinil 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 modafinil is wake-promoting, so their effects counteract each other. Modafinil may mask sleepiness without fully reversing psychomotor impairment.

How serious is the interaction between Hydroxyzine and Modafinil?

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 on driving and machinery risks, and consider a non-sedating alternative if sedation is troublesome.

What other medicines interact with Modafinil?

MediHelp also lists interactions of Modafinil with, for example, Lenacapavir, Leniolisib, Lorlatinib. The full list is on the Modafinil 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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