Does Benadryl Help with Insomnia?

Yes, Benadryl can help with short-term insomnia due to its sedating antihistamine properties. Diphenhydramine, the active ingredient, blocks histamine receptors in the brain that regulate wakefulness, typically causing drowsiness within 30-60 minutes. However, studies show tolerance develops quickly, often within 3-4 days of regular use, making it less effective for chronic sleep problems. Common side effects include next-day grogginess, dry mouth, and cognitive impairment lasting 8-12 hours. Healthcare providers generally recommend using Benadryl for sleep only occasionally, as dependency can develop and withdrawal may worsen insomnia.

Related Questions

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