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[al-uh-pyoo r-uh-nawl, -nol] /ˌæl əˈpyʊər əˌnɔl, -ˌnɒl/
noun, Pharmacology
a substance, C 5 H 4 N 4 O, used primarily in the treatment of chronic gout to decrease the synthesis of uric acid.
Origin of allopurinol
1960-65; apparently allo- + purine + -ol1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for allopurinol
  • allopurinol is a xanthine oxidase inhibitor that blocks uric acid production.
  • Daily use of allopurinol or probenecid decrease uric acid levels in your blood.
  • Such treatments might include sodium bicarbonate, allopurinol, and aluminum hydroxide or calcium carbonate.
British Dictionary definitions for allopurinol


a synthetic drug that reduces blood concentrations of uric acid and is administered orally in the treatment of gout. Formula: C5H4N4O
Word Origin
C20: from allo- + purine + -ol1
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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allopurinol in Medicine

allopurinol al·lo·pu·ri·nol (āl'ō-pyur'ə-nôl', -nōl')
A drug that inhibits the synthesis of uric acid and is used to treat gout and other hyperuricemic conditions.

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