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In some countries, this medicine may only be approved for veterinary use.



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category


Chemical Name

An antibacterial substance produced by the growth of strains of Streptomyces azureus (USP)

Foreign Names

  • Thiostreptonum (Latin)
  • Thiostrepton (German)
  • Thiostreptón (Spanish)

Generic Names

  • A-8506 (IS)
  • Alaninamide (IS)
  • Antibiotic 6761-31 (IS)
  • Bryamycin (IS)
  • NSC 170365 (IS)
  • NSC 81722 (IS)
  • Thiactin (IS)
  • X 146 (IS)
  • Thiostrepton (PH: USP 38)

Brand Names

  • Derma 4 (Thiostrepton and Neomycin, + Nystatin, + Triamcinolone (veterinary use))
    Zoetis, United States
  • Derma-Vet (Thiostrepton and Neomycin, + Nystatin, + Triamcinolone (veterinary use))
    Med-Pharmex, United States
  • Derm-Otic (Thiostrepton and Neomycin, + Nystatin, + Triamcinolone (veterinary use))
    Zoetis, United States
  • Panolog (Thiostrepton and Nystatin, + Neomycin, + Triamcinolone (veterinary use))
    Novartis AH, South Africa; Novartis Animal Health, New Zealand; Novartis Animal Health, Poland; Novartis Animal Health Australasia, Australia; Novartis Animal Health Österreich, Austria; Novartis Santé Animale, France; Zoetis, United States; Novartis Tiergesundheit, Switzerland


ISInofficial Synonym
PHPharmacopoeia Name
USPPharmacopoeia of the United States

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.