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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 Categories

Antiprotozoal: Agent against coccidiosis

Antibacterial: Sulfonamide

Chemical Name


Foreign Names

  • Sulfaclozinum (Latin)
  • Sulfaclozin (German)
  • Sulfaclozine (French)
  • Sulfaclozina (Spanish)

Generic Name

  • Sulfachlorpyrazin (IS)

Brand Names

  • Sulfacloropirazina 12.5% (veterinary use)
    Chemifarma, Italy
  • ESB (veterinary use)
    Novartis Animal Health, Netherlands; Novartis Animal Health, South Africa
  • ESB 3 (veterinary use)
    Zoetis, United States
  • Esb3 30% (veterinary use)
    Novartis Tiergesundheit, Switzerland
  • Sodium Sulfachloropyrazine Zoetis (veterinary use)
    Zoetis, United States
  • Sulfatyf (veterinary use)
    Drwalewskie Zaklady Przemyslu Bioweterynaryjnego, Poland


ISInofficial Synonym
Rec.INNRecommended International Nonproprietary Name (World 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.