Diphenhydramine (Benadryl)

General Information

Also known as Benadryl Allergy Sinus Headache, Coricidin Night Time Cold Relief, Excedrin Pm, Genapap Pm, Legatrin Pm, Mapap Pm, Masophen Pm, Midol Pm, Tylenol Pm, and Unisom With Pain Relief



Diphenhydramine is a first-generation antihistamine possessing anticholinergic, antitussive, antiemetic, and sedative properties that is mainly used to treat allergies. It is also used in the management of drug-induced parkinsonism and other extrapyramidal symptoms. The drug has a strong hypnotic effect and is FDA-approved as a non-prescription sleep aid, especially in the form of diphenhydramine citrate. It is produced and marketed under the trade name Benadryl by McNeil-PPC (a division of Johnson & Johnson) in the U.S., Canada and South Africa (trade names in other countries include Dimedrol, Daedalon and Nytol). It is also available as a generic or store brand medication.

Source: Wikipedia

Estimated Total Cost: $4.91 for an average of 21 days supply

What is it prescribed for?

Patients are most commonly prescribed diphenhydramine to treat skin rash, allergy, itching of skin, and allergic reaction.

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