Benadryl (diphenhydramine) is an over-the-counter (OTC) antihistamine commonly used to treat allergies that is also sometimes used as a sleep aid for insomnia. Benadryl is only intended for the ...

These include sleep aids and allergy drugs that contain antihistamines, such as: diphenhydramine (Benadryl) doxylamine succinate (Nyquil) While diphenhydramine and doxylamine succinate are ...

There are many brands and forms of diphenhydramine available. Read the dosing instructions carefully for each product because the amount of diphenhydramine may be different between products.

There are many brands and forms of diphenhydramine available. Read the dosing instructions carefully for each product because the amount of diphenhydramine may be different between products.

also known as diphenhydramine HCI—the generic form of Benadryl. The drug is used to alleviate hay fever symptoms like sneezing, runny nose, itchy eyes, upper airway irritation, as well as other ...