Dictionary.com
Thesaurus.com

allopurinol

American  
[al-uh-pyoor-uh-nawl, -nol] / ˌæl əˈpyʊər əˌnɔl, -ˌnɒl /

noun

Pharmacology.
  1. a substance, C 5 H 4 N 4 O, used primarily in the treatment of chronic gout to decrease the synthesis of uric acid.


allopurinol British  
/ ˌæləʊˈpjʊərɪˌnɒl /

noun

  1. a synthetic drug that reduces blood concentrations of uric acid and is administered orally in the treatment of gout. Formula: C 5 H 4 N 4 O

"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

Etymology

Origin of allopurinol

1960–65; apparently allo- + purine + -ol 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Medications such as allopurinol are widely used to lower urate levels in the blood.

From Science Daily • Apr. 14, 2026

“It contains a molecule that’s similar to the drug allopurinol, which is used to treat gout,” Alexon says.

From Washington Post • Aug. 15, 2022

It found that patients on Uloric had a 22 percent higher risk of death from any cause and a 34 percent higher risk of heart-related deaths than patients taking allopurinol, a generic alternative.

From Salon • Jul. 2, 2018

But colchicine doesn't deal with the underlying problem, and White was allergic to the most common anti-uric-acid medicine, allopurinol.

From Washington Post • Mar. 7, 2011

Struthers added that compared with some older antianginal drugs such as nitrates and beta-blockers, patients were able to tolerate allopurinol better because it does not reduce blood pressure or heart rate.

From Reuters • Jun. 7, 2010