- a synthetic p aminophenol derivative and diphenhydramine combination with anti inflammatory, analgesic, and anti allergic properties. Acetaminophen diphenhydramine is used to treat symptoms of allergies and hay fever. The active principal metabolite of phenacetin, acetaminophen appears to inhibit prostaglandin biosynthesis in the central nervous system and less in peripheral tissues. Diphenhydramine blocks histamine effects, preventing sneezing and itchy, watery eyes, as well as nasal and other allergy and hay fever symptoms. (nci04)
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Source: Data courtesy of the U.S. National Library of Medicine. Since the data might have changed, please query MeSH on Acetaminophen/diphenhydramine for any updates.