Hydroxyzine (whose brand names include Vistaril) and Benadryl (the brand name of diphenhydramine) are both first-generation antihistamines and share many similarities, including sedating side effects.

Add Yahoo as a preferred source to see more of our stories on Google. A consumer OTC medicine group notes that products containing diphenhydramine "are not intended for long-term use." - John ...

Alcohol and Benadryl both depress the central nervous system (CNS), and combining them can dramatically worsen side effects like drowsiness, slowed breathing, confusion, and impaired coordination.

Promethazine and diphenhydramine are both strong, sedating (drowsy) antihistamines. NHS guidance advises against taking these ...

Dr. Anna Wolfson says she sees dangerous misuse of the allergy medication diphenhydramine in her clinic every day.“If someone has an allergic reaction to a food, people will say, ‘Don’t worry, I have ...