If you’re having trouble sleeping, you are not alone. According to a national survey, only 43% of us would describe our sleep quality as good or very good.

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 ...

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 ...

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

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.