Can a Popular Antihistamine Drug Cause Brain Fog?

The latest research has shown that common anticholinergic drugs (diphenhydramine) like Benadryl® are linked to increased risk of dementia. What is diphenhydramine? Diphenhydramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Diphenhydramine is used to treat sneezing,…

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