Is Benadryl Safe to Use as a Sleep Aid?

Benadryl can help with occasional sleeplessness but isn't recommended for regular sleep aid use. The antihistamine diphenhydramine in Benadryl causes drowsiness by blocking histamine receptors in the brain. While effective short-term, using Benadryl nightly can lead to tolerance within 3-4 days, requiring higher doses for the same effect. Long-term use may cause next-day grogginess, dry mouth, constipation, and cognitive impairment, especially in adults over 65. The American Academy of Sleep Medicine advises against regular antihistamine use for sleep disorders. For persistent insomnia lasting more than two weeks, consult a healthcare provider to identify underlying causes and explore safer, more effective treatment options.

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