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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


Cholinesterase inhibitor

Chemical Name

O,O-Dietyl O-3,5,6-trichloro-2-pyridyl phosphorotioate

Foreign Names

  • Chlorpyrifos (German)
  • Chlorpyriphos (French)

Generic Names

  • Chlorpyrifos (OS: BAN)
  • Dursban (IS)
  • EPA Pestizide Chemical Code 059101 (IS)
  • XRM 429 (IS)
  • XRM 5160 (IS)

Brand Names

  • Fleaban (veterinary use)
    Exelpet Products, Australia
  • Flypel (Chlorpyrifos and Cypermethrin (veterinary use))
    Merial, New Zealand
  • Interflyex (Chlorpyrifos and Cypermethrin (veterinary use))
    Interhyg, Germany
  • Xterminate (veterinary use)
    Merial, New Zealand
  • Y-Tex Warrior (Chlorpyrifos and Dimpylate (veterinary use))
    Flycam, Australia


BANBritish Approved Name
ISInofficial Synonym
OSOfficial Synonym

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.