- dimenhydrinate
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/duy'men huy"dreuh nayt'/, n. Pharm.a synthetic, crystalline, antihistamine powder, C17H22NO·C7H6ClN4O2, used in the treatment of allergic disorders and as a preventive for seasickness and airsickness.
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▪ drugantihistamine used to treat nausea, chiefly that which occurs in motion sickness, and also in the symptomatic treatment of vertigo, such as in Ménière syndrome (Ménière disease), a disease of the inner ear. Dimenhydrinate, a synthetic drug introduced into medicine in 1949, is administered orally in tablet or syrup form. Its duration of action is about four hours. The most common side effect is drowsiness.* * *
Universalium. 2010.