Diphenhydramine is the active ingredient in countless over-the-counter medications. But experts say there are serious risks ...

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 ...

"People sometimes assume these medications must be harmless because they are sold over the counter ... Here’s why first generation antihistamines are bad for your brain health.

Benadryl is an antihistamine that can be used to treat allergies in kids. Learn more about dosage guidelines and when to ...

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

Earlier this month, the U.S. Food and Drug Administration (FDA) issued a warning regarding two popular allergy medications.

If you've been taking Zyrtec or Xyzal for your worsening allergy symptoms, there's a new side effect you should know about.

In this edition of The People's Pharmacy, Joe and Teresa Graedon also hear from a reader having trouble getting rid of lice.

A panel of dermatologists selected their top recommended brands for the Best Over-The-Counter Medicine & Health Products list. La Roche Posay also climbed the rankings this year. CeraVe and ...

Two common anti-allergy medications can leave you feeling scratchier than ever. The Food and Drug Administration is warning that stopping long-term use of cetirizine and levocetirizine can, in rare ...