Benadryl
Benadryl is a brand name for a number of different antihistamine medications used to stop allergies, including diphenhydramine, acrivastine and cetirizine. It is sold by Johnson & Johnson.
In the United States and Canada, it is the first-generation antihistamine diphenhydramine. Some products marketed in Australia and New Zealand as a cough medicine with the Benadryl name contain diphenhydramine. In the United Kingdom, the active component of Benadryl is the antihistamine acrivastine or cetirizine.
