1. 
   clemastine
   <chemical> Histamine h1 antagonist used as the hydrogen fumarate in hay fever, rhinitis, allergic skin conditions, and pruritus. It causes drowsiness. ... Pharmacological action: anti-allergic agents, antipruritics, histamine h1 antagonists. ... Chemical name: Pyrrolidine, 2-(2-(1-(4-chlorophe...
   Found op http://www.mondofacto.com/facts/dictionary?clemastine
   
   
2. 
   clemastine
   (klem´әs-tēn) an antihistamine with sedative and anticholinergic effects; used as the fumarate salt in the treatment of nasal, eye, and skin manifestations of allergic reactions, including allergic rhinitis, conjunctivitis, and itching, and also as an ingredient in cough and cold prepara...
   Found op http://www.encyclo.co.uk/local/21001
   
   
3. 
   Clemastine
   Clemastine, also known as meclastin, is an antihistamine and anticholinergic. Unlike loratadine or fexofenadine, clemastine is a sedating antihistamine, however it exhibits fewer other side effects than most of the widely used antihistamines.{fact|date=September 2011} Clemastine is also classified ...
   Found op http://en.wikipedia.org/wiki/Clemastine
   
   

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