A commonly-used over-the-counter medication that can provide allergy and cold relief or serve as sleep aids may increase a person’s risk of dementia. Antihistamines work to block the chemical ...

Certain antihistamines found in common allergy medications and sleep aids are liked to an increased dementia risk. Doctors share what you should take instead.

First on the list of duds was ZzzQuil, an over-the-counter sleep aid from the makers of DayQuil and NyQuil. Sold as a syrup, ZzzQuil contains the active ingredient diphenhydramine, an antihistamine ...

DEAR PEOPLE’S PHARMACY: I would never take any over-the-counter meds with diphenhydramine for sleep. In my opinion, regular use of this antihistamine for insomnia is worrisome.