diphenhydramine hydrochloride

diphenhydramine hydrochloride
An H2 antihistaminic with anticholinergic and sedative properties.

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[USP] the hydrochloride salt of diphenhydramine, used for the symptomatic treatment of allergic symptoms, for the treatment of anaphylaxis, parkinsonism or drug-induced extrapyramidal disorders, and motion sickness or other causes of nausea, vomiting, or vertigo, as an antitussive, as a sedative and hypnotic, and as an ingredient in cough and cold preparations; administered orally, intramuscularly, and intravenously.

Medical dictionary. 2011.

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