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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

Anthelmintic agent

Chemical Name

Carbamic acid, [5-(phenylsulfinyl)-1H-benzimidazol-2-yl]-, metyl ester

Foreign Names

  • Oxfendazolum (Latin)
  • Oxfendazol (German)
  • Oxfendazole (French)
  • Oxfendazol (Spanish)

Generic Names

  • Oxfendazole (OS: BAN, USAN)
  • RS 8858 (Syntex) (IS)
  • Oxfendazole (PH: BP vet. 2018, USP 41)
  • Oxfendazole for veterinary use (PH: Ph. Eur. 9)
  • Oxfendazole pour usage vétérinaire (PH: Ph. Eur. 9)
  • Oxfendazolum ad usum veterinarium (PH: Ph. Eur. 9)

Brand Names

  • Alliance [+ Abamectin, + Levamisole] [veterinary use]
    MSD, New Zealand
  • Ammo Rotational for Horses [veterinary use]
    Ceva Animal Health, Australia
  • Autoworm [veterinary use]
    Zoetis, United Kingdom
  • Benzelmin [veterinary use]
    Jurox, Australia; Zoetis, United States
  • Benzelmin Plus [+ Metrifonate] [veterinary use]
    Zoetis, United States
  • Bomatak [veterinary use]
    Bayer New Zealand, New Zealand
  • Bovex [veterinary use]
    Chanelle Animal Health, United Kingdom; Chanelle Pharmaceuticals Manufacturing, Ireland
  • Bovex 2.265% [veterinary use]
    Chanelle, Netherlands; Chanelle Animal Health, United Kingdom
  • Combifluke [+ Closantel] [veterinary use]
    Norbrook Laboratories, Ireland
  • Dolthene [veterinary use]
    Merial, Belgium; Merial, France
  • Dolthene 22.65 mg/ml voor honden [veterinary use]
    Merial, Netherlands
  • Duotech [+ Closantel] [veterinary use]
    Norbrook, Italy; Norbrook Laboratoires Ltd., Israel; Norbrook Laboratories, Ireland; Zoetis, France
  • Endoworm [veterinary use]
    Norbrook Laboratories, United Kingdom
  • Equitak Excel [+ Abamectin, + Praziquantel] for Horses [veterinary use]
    Bayer Australia Ltd Animal Health, Australia; Bayer New Zealand, New Zealand
  • Fendov [veterinary use]
    Zoetis Belgium, Belgium
  • Flukazole [+ Triclabendazole] [veterinary use]
    Virbac, South Africa
  • Flukazole C plus Selenium [+ Triclabendazole, + Selenium] for Cattle and Sheep [veterinary use]
    Virbac, Australia
  • Flukecare +SE [+ Triclabendazole, + Sodium Selenate] [veterinary use]
    Virbac, New Zealand
  • Hat-Trick Drench [+ Abamectin, + Levamisole, + Selenium,+ Cobalt] [veterinary use]
    Merial Australia, Australia
  • Interzol 67,5 mg/g für Rinder, Schafe und Schweine [veterinary use]
    Alvetra u. Werfft, Austria
  • Matrix for Sheep [+ Abamectin, + Levamisole] [veterinary use]
    Merial, New Zealand
  • Moranox for Horses [+ Morantel] [veterinary use]
    Riverside Veterinary Product, Australia
  • Ovidown [+ Selenium, + Cobalt] [veterinary use]
    Norbrook Laboratories, United Kingdom
  • Oxfen [veterinary use]
    Bayer AH, South Africa
  • Oxfen C Plus [+ Selenium, + Levamisole] [veterinary use]
    Merial, New Zealand
  • Oxfen LV for Sheep, Cattle and Goats [veterinary use]
    Virbac, Australia
  • Oxfencare [veterinary use]
    Ancare Ireland, Ireland
  • Oxfenil [veterinary use]
    Virbac, Italy
  • Oxfenil 2.265% [veterinary use]
    Virbac, Germany; Virbac, France
  • Oxfenil 9.06% [veterinary use]
    Virbac, France
  • Parafend [+ Closantel] [veterinary use]
    Norbrook, South Africa
  • Parafend [+ Cobalt, Selenium] [veterinary use]
    Norbrook Laboratories, Ireland
  • Parafend [veterinary use]
    Norbrook, New Zealand; Norbrook, South Africa; Norbrook Laboratories, United Kingdom; Norbrook Laboratories, Ireland
  • Parafend Plus [+ Closantel] [veterinary use]
    Norbrook Laboratories, Ireland
  • Repidose [veterinary use]
    Intervet Ireland, Ireland
  • Repidose 5 3.750g voor runderen [veterinary use]
    Intervet, Netherlands
  • Repidose Farmintic 1250 [veterinary use]
    MSD Santé Animale Intervet, France
  • Repidose Farmintic 750 [veterinary use]
    MSD Santé Animale Intervet, France
  • Repidose Forte 6.25 g voor runderen [veterinary use]
    Intervet, Netherlands
  • Revolve [+ Morantel] [veterinary use]
    Kelato Animal Health, Australia
  • Scanda [+ Levamisole] [veterinary use]
    Coopers Animal Health, Australia; MSD, New Zealand
  • Strategy-T [+ Pyrantel] for Horses [veterinary use]
    Virbac, Australia; Virbac, New Zealand
  • Synanthic [veterinary use]
    Merial, France
  • Synanthic 9.06 IST [veterinary use]
    Merial, France
  • Synanthic Bovine [veterinary use]
    Boehringer Ingelheim Vetmedica, United States; Zoetis, United States
  • Synanthic Equine [veterinary use]
    Zoetis, United States
  • Systamex [veterinary use]
    MSD Animal Health, Switzerland; Orion Pharma Animal Health, Sweden; Pfizer Animal Health, Norway; Zoetis Deutschland, Germany
  • Systamex Intervall-Bolus forte für Rinder [veterinary use]
    MSD Animal Health, Switzerland
  • Trifecta [+ Abamectin, + Levamisole, + Cobalt, + Selenium] [veterinary use]
    Coopers Animal Health, Australia
  • Triguard [+ Abamectin, + Levamisole, + Cobalt, + Selenium] [veterinary use]
    Merial Australia, Australia
  • Ultra-Mox [+ Moxidectin, + Praziquantel] [veterinary use]
    Bayer New Zealand, New Zealand
  • Worma [+ Piperazine] [veterinary use]
    International Animal Health, Australia
  • Worma for Horses & Cattle [veterinary use]
    International Animal Health, Australia
  • Wormall [veterinary use]
    Coyle, Ireland
  • Wormout [+ Praziquantel] [veterinary use]
    Vetafarm, Australia
  • Wormout for Pigeons and Bantams [+ Praziquantel] [veterinary use]
    Vetafarm, Australia


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

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.