Medication Guide App


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



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Anthelmintic agent


Ectoparasiticide, treatment of varroosis

Chemical Name

Phosphorothioic acid, O-(3-chloro-4-methyl-2-oxo-2H-1-benzopyran-7-yl) O,O-diethyl ester

Foreign Names

  • Coumafosum (Latin)
  • Coumafos (German)
  • Coumafos (French)
  • Cumafos (Spanish)

Generic Names

  • Coumafos (OS: BAN)
  • 7-Co-ral (IS)
  • Bayer 21/199 (IS)
  • Coumaphos (IS)
  • Cumafosum (IS)

Brand Names

  • Asuntol (veterinary use)
    Bayer Portugal, SA., Portugal
  • CheckMite (veterinary use)
    Provet, Switzerland
  • Co-Ral Plus (Coumafos and Dimpylate (veterinary use))
    Bayer Australia Ltd Animal Health, Australia
  • Meldane (veterinary use)
    Bayer Animal Health, United States
  • Perizin (veterinary use)
    Bayer, Germany; Bayer Portugal, SA., Portugal; Provet, Switzerland
  • Purina (veterinary use)
    Purina, United States; Virbac, United States

International Drug Name Search


BANBritish Approved Name
ISInofficial Synonym
OSOfficial Synonym
Rec.INNRecommended International Nonproprietary Name (World Health Organization)

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.