1. Noun. An antihistamine drug used to treat allergies ¹
¹ Source: wiktionary.com
Medical Definition of Loratadine
1. A second-generation histamine h1 receptor antagonist used in the treatment of allergic rhinitis and urticaria. Unlike most classical antihistamines it lacks central nervous system depressing effects such as drowsiness.
Pharmacological action: anti-allergic agents, antipruritics, histamine h1 antagonists.
Chemical name: 1-Piperidinecarboxylic acid, 4-(8-chloro-5,6-dihydro-11H-benzo(5,6)cyclohepta(1,2-b)pyridin-11-ylidene)-, ethyl ester
(12 Dec 1998)
