diphenhydramine(redirected from Nighttime Sleep Aid)
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A sedating antihistamine drug, C17H21NO, used usually in the form of its hydrochloride to treat symptoms of colds and allergic conditions, motion sickness, insomnia, and parkinsonism.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a compound used in medicines, in the form of diphenhydramine hydrochloride, as an antihistamine, sedative, and anticholinergic
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|Noun||1.||diphenhydramine - antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness|
antihistamine - a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site
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n. difenhidramina, nombre comercial Benadryl, antihistamínico.
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