While searching for the best cough medicine, you will find several over-the-counter (OTC) cough suppressants that contain the drugs dextromethorpan or diphenhydramine. For more severe coughs, your ...
Benadryl - also known by its generic name diphenhydramine - is an over-the-counter antihistamine commonly used to relieve symptoms of allergies, hay fever, and the common cold in humans. It works by ...