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an antihistamine derived from piperazine, used as the hydrochloride salt; it has anticholinergic, antiemetic, local anesthetic, and mild sedative properties. Administered orally as a component of various cold and allergy preparations and topically to relieve itching.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.