dimenhydrinate di·men·hy·dri·nate (dī'měn-hī'drə-nāt')
An antihistamine used to treat motion sickness and allergic disorders.
antihistamine used to treat nausea, chiefly that which occurs in motion sickness, and also in the symptomatic treatment of vertigo, such as in Meniere syndrome, 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.
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