Benadryl Side Effects on Brain Health and Dementia Risk First-generation antihistamines like diphenhydramine (Benadryl) block histamine but also strongly block acetylcholine, a neurotransmitter essential for attention and memory. That anticholinergic effect explains many of the cognitive risks. 🧠 Memory problems and slower thinking Diphenhydramine crosses the blood–brain barrier and impairs attention, working memory, and reaction time. Controlled studies show worse vigilance and cognitive perfo

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🤧 Runny noses and sneezes holding you back? We've got you! Get powerful allergy and cold relief in 1 pill with BENADRYL®. Use product as directed. Temporarily relieves runny nose and sneezing due to upper respiratory allergies or the common cold. | BENADRYL

Don’t let allergies stop the outdoor family fun! ☀️ Whether it’s a case of the sniffles or itches from bug bites, BENADRYL® has your back so you can get back outside. Use product as directed. Do not use more than one diphenhydramine product at the same time. | BENADRYL