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In the US, Azathioprine (azathioprine systemic) is a member of the following drug classes: antirheumatics, other immunosuppressants and is used to treat Atopic Dermatitis, Autoimmune Hepatitis, Behcet's Disease, Bullous Pemphigoid, Chronic Active Hepatitis, Chronic Inflammatory Demyelinating Polyradiculoneuropathy, Cogan's Syndrome, Crohn's Disease, Crohn's Disease - Acute, Crohn's Disease - Maintenance, Dermatomyositis, Eczema, Glomerulonephritis, Granulomatosis with Polyangiitis, Idiopathic Thrombocytopenic Purpura, Inflammatory Bowel Disease, Multiple Sclerosis, Myasthenia Gravis, Myopathy, Nephrotic Syndrome, Neurosarcoidosis, Organ Transplant - Rejection Prophylaxis, Pemphigoid, Pemphigus, Primary Biliary Cholangitis , Psoriatic Arthritis, Renal Transplant, Rheumatoid Arthritis, Sarcoidosis, Systemic Lupus Erythematosus, Takayasu's Arteritis, Ulcerative Colitis and Uveitis.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories


Disease-modifying antirheumatic drug, DMARD

Purine antagonist

Chemical Name

6-(1-metyl-4-nitroimidazol-5-yltio)purine (WHO)

Foreign Names

  • Azathioprinum (Latin)
  • Azathioprin (German)
  • Azathioprine (French)
  • Azatioprina (Spanish)

Generic Names

  • Azathioprine (OS: BAN, DCF, USAN, JAN)
  • Azatioprina (OS: DCIT)
  • BW 57-322 (IS)
  • NSC-39084 (IS)
  • UNII-MRK240IY2L (IS)
  • Azathioprin (PH: Ph. Eur. 8)
  • Azathioprine (PH: BP 2016, JP XVI, Ph. Eur. 8, Ph. Int. 4, USP 38)
  • Azathioprinum (PH: Ph. Eur. 8, Ph. Int. 4)
  • UNII-AM94R510MS (IS)

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
WHOWorld Health Organization

Further information on drug naming conventions: 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.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.