Benadryl is a brand of various antihistamine medications used to treat allergies, whose content varies in different countries, but which includes some combination of diphenhydramine, acrivastine, or cetirizine.

It is sold by Kenvue and is used to relieve allergy symptoms such as sneezing, itching, runny nose, rash, and hives. Some forms of Benadryl are to be taken orally, while some creams and gels are to be applied to the skin. Common side effects of the drug include drowsiness, dizziness, dry mouth and throat, confusion, and blurred vision.

In the United States and Canada, the active ingredient is diphenhydramine. In the United Kingdom, the active ingredients of Benadryl are the second-generation antihistamines acrivastine or cetirizine. Benadryl is also sold as a cough medicine in Australia, India and New Zealand containing diphenhydramine, as well as the antitussive dextromethorphan or the expectorant guaifenesin.

There are many different forms of Benadryl found in different countries. In the United States and Canada, there are several versions of Benadryl for allergies, some to be taken orally and some as a topical analgesic. In Australia, New Zealand and India, Benadryl is known as a cough liquid.

Benadryl Allergy is the name of a Benadryl product found in the United States and Canada. It is an antihistamine drug used to relieve allergies. Its active ingredient is diphenhydramine, a first-generation antihistamine. It is known to be sedative, making drowsiness a common side effect. It is an oral drug to be taken by mouth, to relieve symptoms of allergy, hay fever and the common cold. It can also be used to relieve allergies such as itching, sneezing, runny nose, rash and hives.

Benadryl Allergy for Children is also available. It comes in liquid form and can be used to provide fast and effective relief for allergies such as sneezing, itchy, runny nose, itchy eyes and hives.

Benadryl Allergy is widely used as a sleep aid among adults. While it is not marketed as an over-the-counter (OTC) sleeping aid, most versions of Benadryl contain diphenhydramine, a drug with sedative properties. Diphenhydramine (Benadryl) has also been used by parents to help improve their infant's sleep habits. However, this has been met by criticism on whether it is appropriate to do so.

In the United Kingdom, Benadryl can be found as Benadryl Allergy Relief. The main ingredient in this medication is acrivastine. Acrivastine is a non-drowsy antihistamine used to relieve allergies. It can treat hay fever, hives, insect bites and stings, conjunctivitis and eczema. Benadryl Allergy Relief contains 8 mg of acrivastine in each capsule. It is to be taken orally.