Skip to Content


In the US, Dapsone (dapsone systemic) is a member of the drug class leprostatics and is used to treat Bullous Pemphigoid, Dermatitis Herpetiformis, Leprosy, Leprosy - Lepromatous, Leprosy - Tuberculoid, Leukocytoclastic Vasculitis, Linear IgA Disease, Pemphigoid, Pemphigus, Pneumocystis Pneumonia, Pneumocystis Pneumonia Prophylaxis and Toxoplasmosis - Prophylaxis.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antileprotic agent

Chemical Name

Benzenamine, 4,4'-sulfonylbis-

Foreign Names

  • Dapsonum (Latin)
  • Dapson (German)
  • Dapsone (French)
  • Dapsona (Spanish)

Generic Names

  • Dapsone (OS: BAN, USAN, DCIT, DCF)
  • Diaphenylsulfone (OS: JAN)
  • DADPS (IS)
  • DDS (IS)
  • Diaphenylsulfon (IS)
  • Diaphénylsulfone (IS)
  • Diphenason (IS)
  • F 1358 (IS)
  • NSC 6091 (IS)
  • Dapson (PH: Ph. Eur. 8)
  • Dapsone (PH: BP 2015, Ph. Eur. 8, Ph. Int. 4, USP 37)
  • Dapsonum (PH: Ph. Eur. 8, Ph. Int. 4)

Brand Names

International Drug Name Search


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.