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Sodium Phenylbutyrate

In the US, Sodium Phenylbutyrate (sodium phenylbutyrate systemic) is a member of the drug class urea cycle disorder agents and is used to treat Urea Cycle Disorders.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Treatment of metabolic disease

Chemical Name

Benzenebutanoic acid, sodium salt

Foreign Names

  • Natrii phenylbutyras (Latin)
  • Natriumphenylbutyrat (German)
  • Phénylbutyrate sodique (French)

Generic Names

  • Sodium Phenylbutyrate (OS: USAN, BAN, JAN)
  • Natrii phenylbutyras (PH: Ph. Eur. 8)
  • Sodium Phenylbutyrate (PH: BP 2016)
  • Sodium phenylbutyrate (PH: Ph. Eur. 8)

Brand Names

  • Ammonaps
    Orphan, Germany; Swedish Orphan, Czech Republic; Swedish Orphan, Denmark; Swedish Orphan, Spain; Swedish Orphan, Italy; Swedish Orphan, Lithuania; Swedish Orphan, Latvia; Swedish Orphan, Poland; Swedish Orphan Biovitrum International, Austria; Swedish Orphan Biovitrum International, Sweden; Swedish Orphan Biovitrum, Finland; Swedish Orphan Biovitrum, France; Swedish Orphan Biovitrum, United Kingdom; Swedish Orphan Biovitrum, Norway; Swedish Orphan Biovitrum, Romania; Swedish Orphan Biovitrum Ltd., Ireland; Swedish Orphan International, Hungary
  • Buphenyl
    Medicis Dermatologics, United States; Orphan Pacific, Japan; Ucyclyd, Taiwan
  • Buphenyl 94%
    Orphan Pacific, Japan
  • Pheburane
    Lucane, Denmark; Lucane, Norway; Lucane Pharma, Austria; Lucane Pharma, France; Lucane Pharma, Poland; Lucane Pharma, Slovenia; Medical Need Europe, Sweden
  • Sodium Phenylbutyrate SigmaPharm
    SigmaPharm, United States


BANBritish Approved Name
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
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.