Benadryl (diphenhydramine) is a well-known antihistamine used to treat allergy symptoms, including itchy and watery eyes, sneezing, and runny nose. It may also be used to treat colds, dry coughs, ...

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.

Immediately after intravenous injection of undiluted 1 mL of 50 mg diphenhydramine hydrochloride (West-Ward Pharmaceuticals Eatontown, New Jersey, USA), patient developed transient burning pain and ...

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.