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Does Hydroxyzine Help with Sleep?

Linda Girgis | MD

Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 20th, 2026.

Yes, hydroxyzine can help with sleep due to its sedating antihistamine properties. This medication blocks histamine receptors in the brain, which naturally promotes drowsiness and can improve sleep quality. Studies show hydroxyzine typically takes 30-60 minutes to produce sedative effects, making it useful for both falling asleep and staying asleep. Healthcare providers often prescribe 25-100mg doses for sleep disorders, particularly when anxiety contributes to insomnia. Unlike some sleep medications, hydroxyzine is not habit-forming and doesn't cause physical dependence. However, it can cause next-day drowsiness in some people, especially at higher doses.

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