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[az-uh-thahy-uh-preen] /ˌæz əˈθaɪ əˌprin/
noun, Pharmacology.
a cytotoxic purine analog, C 9 H 7 N 7 O 2 S, used as an immunosuppressive in organ transplantations and in rheumatoid arthritis and connective tissue disorders.
Origin of azathioprine
1960-65; coinage apparently based on imidazol, thio-, and purine, parts of the chemical name Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for azathioprine


a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
Word Origin
C20: from aza- + thio- + p(u)rine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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azathioprine in Medicine

azathioprine az·a·thi·o·prine (āz'ə-thī'ə-prēn')
An immunosuppressive agent used especially to prevent organ rejection in kidney transplant recipients.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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