1. 
   acitretin
   <chemical> An oral retinoid effective in the treatment of psoriasis. It is the major metabolite of etretinate with the advantage of a much shorter half-life when compared with etretinate. ... Pharmacological action: keratolytic agents. ... Chemical name: 2,4,6,8-Nonatetraenoic acid, 9-(4-metho...
   Found op http://www.mondofacto.com/facts/dictionary?acitretin
   
   
2. 
   acitretin
   (as″e-tret´in) a second generation retinoid used in treatment of severe psoriasis; administered orally.
   Found op http://www.encyclo.co.uk/local/21001
   
   
3. 
   acitretin
   A substance that is used in the prevention of cancer and in the treatment of psoriasis. It belongs to the family of drugs called retinoids.
   Found op http://www.cancer.gov/dictionary?expand=A
   
   

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