Benadryl is a brand of various antihistamine medications used to stop allergies. It includes some combination of diphenhydramine, acrivastine, and/or cetirizine.
In India, Benadryl can also be found in the form of a cough liquid and also cough lozenges. Benadryl Cough Syrup contains diphenhydramine, ammonium chloride and citrate as its main ingredients. It is used to relieve cough and cold, and also soothes the throat.