But the best relief might already be in your medicine cabinet. For common ailments like allergies, pain, and insomnia, trying an over-the-counter drug first can often be less expensive than ...
“If you take diphenhydramine, also known as Benadryl or Elavil, or any sort of antihistamine medication or anticholinergic for a long period of time, it has been linked to dementia,” Hasan said.