Medically reviewed by Alex Yampolsky, PharmD Benadryl (diphenhydramine) is an over-the-counter (OTC) antihistamine drug ...

But before you find symptom relief in over-the-counter cough medicine, you may find yourself asking: can you take allergy ...

Benadryl's (the leading OTC Cough-Syrup) market-share was stagnant in competitive markets (Maharashtra, Uttar-Pradesh) despite continuous investment. Consumers in ...