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

In the US, Phenylbutazone is a member of the drug class nonsteroidal anti-inflammatory agents.

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Analgesic, antipyretic and anti-inflammatory agent

Non-steroidal anti-inflammatory drug, NSAID

Chemical Name

3,5-Pyrazolidinedione, 4-butyl-1,2-diphenyl-

Foreign Names

Generic Names

Brand Names

  • Akrofen
    Nufarindo, Indonesia
  • Ambene
    Merckle Recordati, Germany
  • Antipyranal (veterinary use)
    Alfasan, Netherlands
  • Arthrisel (veterinary use)
    Selecta, Germany
  • Beautamav (veterinary use)
    Mavlab, Australia
  • Berlison
    Berlico Mulia Farma, Indonesia
  • Bizolin (veterinary use)
    Boehringer Ingelheim Vetmedica, United States
  • Butadion
    Gedeon Richter, Georgia; Gedeon Richter, Lithuania
  • Butalone (veterinary use)
    Apex Laboratories, Australia
  • Butapirazol
    GlaxoSmithKline, Poland
  • Butasan (veterinary use)
    Vetochas, Germany; Vetoquinol, Switzerland
  • Butasyl (Phenylbutazone and Salicylic Acid (veterinary use))
    Novartis Animal Health Australasia, Australia
  • Butatron (veterinary use)
    Cross Vetpharm Group, United States
  • Butazolidin
    Fagron, Netherlands
  • Butazolidin (veterinary use)
    Schering-Plough Animal Health, United States
  • Butazolidina
    Novartis, Brazil
  • Bute (veterinary use)
    Acme, Italy; Ranvet, Australia
  • Butequine (veterinary use)
    Bioniche Animal Health, United States
  • Butin (veterinary use)
    International Animal Health, Australia; Parnell, New Zealand
  • Companazone (veterinary use)
    Arnolds, United Kingdom
  • Deltazone (veterinary use)
    Ceva Delvet, Australia
  • Dextrarine Phénylbutazone (Phenylbutazone and Dextran)
    Sanofi-Aventis, France
  • Diflamix (Phenylbutazone and Triamcinolone (veterinary use))
    Omega Pharma France vet., France
  • Enkapyrin (Phenylbutazone and Propyphenazone)
    Kimia Farma, Indonesia
  • Equibutazone (veterinary use)
    Virbac, Australia
  • EquiBute (veterinary use)
    Fort Dodge Animale Health, United States
  • Equipalazone (veterinary use)
    Bomac, New Zealand; Dechra, United Kingdom; Dechra Veterinary Products, France; Selecta, Germany; Veterinaria, Switzerland; Vétoquinol, United States
  • Equiphen (veterinary use)
    Luitpold, United States
  • Equizone (veterinary use)
    A&G Pharmaceuticals, United States; Bomac, New Zealand
  • Esanfrix (Phenylbutazone and Methyl Salicylate)
    Farmac. Esan, Chile
  • exrheudon OPT
    Optimed, Germany
  • Fenilbutazona Andromaco
    Andromaco, Chile
  • Fenilbutazona Mintlab
    Mintlab, Chile
  • Fenilbutazonã MK
    Fiterman, Romania
  • Fenilbutazona Sanitas
    Sanitas, Chile
  • Fenilbutazonã
    Antibiotice, Romania; Gedeon Richter, Romania; Ozone Laboratories, Romania; Sintofarm, Romania
  • Fenilbutazone (veterinary use)
    Ati, Italy; Equality, Italy
  • Fenylbutazon Oba
    OBA, Denmark
  • Fenylbutazon (veterinary use)
    Dechra, Sweden; Kombivet, Netherlands; V.M.D, Belgium
  • Fenylbutazone (veterinary use)
    Virbac, South Africa
  • Hippopalazon (veterinary use)
    Aristvet, Germany
  • Inflazone
    Aspen Pharmacare, South Africa
  • Irgapan
    Dexa Medica, Indonesia
  • Irtonpyson
    Newai Chem, Taiwan
  • Kadol
    Teofarma, Italy
  • Myoton (veterinary use)
    Jurox, Australia; Jurox, New Zealand
  • Oralject (veterinary use)
    Bomac, New Zealand
  • P Butazone (veterinary use)
    Vetsearch International, Australia
  • P-Butazone (veterinary use)
    Vetsearch International, Australia
  • Phen Buta (veterinary use)
    Cross Vetpharm Group, United States
  • Phen-Pred (Phenylbutazone and Prednisolone (veterinary use))
    Stricker, Switzerland; Alvetra u. Werfft, Austria; CPPharma, Germany
  • Phenylarthrite (veterinary use)
    Bayer Animal Health, South Africa; Vétoquinol S.A., Australia
  • Phenylbutariem (veterinary use)
    Ecuphar, Germany
  • Phenylbutazon
    Gedeon Richter, Hungary
  • Phenylbutazon (veterinary use)
    Aristvet, Germany; CPPharma, Germany; Eurovet, Netherlands; Riemser Animal, Germany; Selecta, Germany
  • Phenylbutazone Molex Ayus
    Molex Ayus, Indonesia
  • Phenylbutazone with Sodium Salicylate (Phenylbutazone and Salicylic Acid (veterinary use))
    Pfizer Animal Health, Australia
  • Phenylbutazone (veterinary use)
    Ayrton Saunders, United Kingdom; Cross Vetpharm Group, United States; IVX, United States; Pegasus, United States; Sparhawk, United States; West-Ward, United States
  • Phenylbute (veterinary use)
    Caledonian Holdings, New Zealand; IVX, United States; Schering-Plough Animal Health, United States
  • Phenylzone (Phenylbutazone and Lidocaine (veterinary use))
    Ilium Veterinary Products, Australia
  • Phenylzone (veterinary use)
    Schering-Plough Animal Health, United States
  • Predni-Butadion (Phenylbutazone and Prednisolone (veterinary use))
    Streuli Vet, Switzerland
  • Pributazone (veterinary use)
    First Priority, United States
  • Pro Dynam (veterinary use)
    Dechra, United Kingdom
  • Robizone V (veterinary use)
    Fort Dodge Animale Health, United States
  • Salbute (Phenylbutazone and Salicylic Acid (veterinary use))
    Nature Vet, Australia
  • Sigma-Elmedal
    Thiemann, Ethiopia
  • Superiorbut (veterinary use)
    Superior, United States
  • Tevcodyne (veterinary use)
    IVX, United States
  • Therazone (veterinary use)
    First Priority, United States
  • Arthri Dog (Phenylbutazone and Prednisolone (veterinary use))
    Vetoquinol, France
  • Butazona Calcica
    Boehringer Ingelheim, Brazil
  • Fenilbutazona
    Neo Quimica, Brazil
  • New Skelan (Phenylbutazone and Carisoprodol)
    Medifarma, Indonesia; UAP, Indonesia
  • Ticinil Calcico
    Boehringer Ingelheim, Venezuela
  • Afibutazone (veterinary use)
    AFI, Italy
  • Ambene
    Merckle Recordati, Germany
  • Bute (veterinary use)
    Acme, Italy
  • Fenilbutazone (veterinary use)
    Intervet, Italy
  • Nabudone (Phenylbutazone and Cinchocaine (veterinary use))
    Ilium Veterinary Products, Australia
  • Nabudone (veterinary use)
    Ilium Veterinary Products, Australia
  • Phenylbutazon (veterinary use)
    Vetochas, Germany
  • Phenytoin
    Union, Taiwan
  • Ramidex (Phenylbutazone and Ramifenazone, + Dexamethasone (veterinary use))
    Ranvet, Australia

International Drug Name Search


BANBritish Approved Name
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
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.