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In the US, Allopurinol (allopurinol systemic) is a member of the following drug classes: antigout agents, antihyperuricemic agents and is used to treat Calcium Oxalate Calculi with Hyperuricosuria, Cardiothoracic Surgery, Gout, Heart Failure, High Risk Percutaneous Transluminal Angioplasty, Hyperuricemia Secondary to Chemotherapy, Leishmaniasis, Mania, Reactive Perforating Collangenosis and Urinary Tract Stones.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Uricostatic agent

Xanthine oxidase inhibitor

Chemical Name

4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5-dihydro- (USAN)

Foreign Names

  • Allopurinolum (Latin)
  • Allopurinol (German)
  • Allopurinol (French)
  • Alopurinol (Spanish)

Generic Names

  • Allopurinol (OS: DCF, USAN, BAN, JAN)
  • Allopurinolo (OS: DCIT)
  • Bloxanth (IS)
  • BW 56-158 (IS)
  • E 861 (IS)
  • HPP (IS)
  • NSC 1390 (IS)
  • Allopurinol (PH: BP 2016, JP XVI, Ph. Eur. 8, Ph. Int. 4, USP 38)
  • Allopurinolum (PH: Ph. Eur. 8, Ph. Int. 4)

Brand Names


BANBritish Approved Name
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

Click for further information on drug naming conventions and International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.