“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.

The usual dose for adults and children ages 6 years and older is 10 mg by mouth daily. Because Benadryl has many potential ...

Benadryl (diphenhydramine ... The recommended dose of doxylamine succinate for adults and children over 12 is 25 mg taken 30 ...