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In the US, Butalbital (acetaminophen/butalbital systemic) is a member of the drug class barbiturates.

US matches:



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Hypnotic and sedative agent

Analgesic agent

Chemical Names

2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-(2-metylpropyl)-5-(2-propenyl)-

5-Allyl-5-isobutylbarbituric acid (WHO)

Foreign Names

  • Butalbitalum (Latin)
  • Butalbital (German)
  • Butalbital (French)
  • Butalbital (Spanish)

Generic Names

  • Butalbital (OS: USAN, DCF)
  • Alisobumalum (IS)
  • Allylbarbital (IS)
  • Itobarbital (IS)
  • Tetrallobarbital (IS)
  • Butalbital (PH: USP 38)

Brand Names

  • Bupap (Butalbital and Paracetamol)
    ECR, United States
  • Fiorinal (Butalbital and Acetylsalicylic Acid, + Caffeine)
    Novartis Pharmaceuticals, Canada
  • Fiorinal-C (Butalbital and Acetylsalicylic Acid, + Caffeine, + Codeine)
    Novartis Pharmaceuticals, Canada
  • Marten (Butalbital and Paracetamol)
    Marnel, United States
  • ratio-Tecnal (Butalbital and Acetylsalicylic Acid, + Caffeine)
    Teva Canada, Canada
  • ratio-Tecnal C1/4 (Butalbital and Acetylsalicylic Acid, + Caffeine, + Codeine)
    Teva Canada, Canada
  • Tencon (Butalbital and Paracetamol)
    International Ethical Labs, United States

International Drug Name Search


DCFDénomination Commune Française
ISInofficial Synonym
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld 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.