Sodium phenylbutyrate

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Sodium phenylbutyrate chemical structure
Sodium phenylbutyrate
Systematic (IUPAC) name
Sodium 4-phenylbutanoate
Identifiers
CAS number 1716-12-7
ATC code A16AX03
PubChem 15585
Chemical data
Formula C10H11O2Na 
Mol. weight 186.2 g/mol
Pharmacokinetic data
Bioavailability  ?
Metabolism to phenylacetate
Half life 0.8 hours
Excretion 80% as phenylacetylglutamine
Therapeutic considerations
Licence data

EU US

Pregnancy cat.

not to be used

Legal status
Routes  ?

Sodium phenylbutyrate is an orphan drug, marketed by Ucyclyd Pharma (Hunt Valley, USA) under the trade name Buphenyl® and by Orphan Europe (France) as Ammonaps®. Phenylbutyrate is a prodrug. In the human body it is metabolized by beta-oxidation to phenylacetate. Phenylacetate conjugate with glutamine to phenylacetylglutamine, that is eliminated with the urine.

Image:nitrogen_elimination.jpg

Sodium phenylbutyrate is also under investigation for the treatment of some sickle-cell disorders (Blood Products Plasma Expanders and Haemostatics) and for use as a potential differentiation-inducing agent in malignant glioma and acute myeloid leukaemia.

[edit] References

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2. Kang HL, Benzer S, Min KT.; Life extension in Drosophila by feeding a drug.; Proc Natl Acad Sci U S A. 2002 Jan 22; 99(2):838-43. Epub 2002 Jan 15.; PMID: 11792861