Oxazepam

Oxazepam
Clinical data
Pronunciation/ɒkˈsæzɪpæm/
ok-SAZ-i-pam
Trade namesSerax, Alepam, Serepax, others
Addiction
liability
Low–moderate
Routes of
administration
By mouth
Drug classBenzodiazepine
ATC code
Legal status
Legal status
  • AU: S4 (Prescription only)
  • BR: Class B1 (Psychoactive drugs)
  • CA: Schedule IV
  • DE: Prescription only (Anlage III for higher doses)
  • US: Schedule IV
  • Prescription drug
Pharmacokinetic data
Bioavailability92.8%
MetabolismHepatic (glucuronidation)
Onset of action30 - 120 minutes
Elimination half-life6–9 hours
Duration of action6 - 12 hours
ExcretionRenal
Identifiers
IUPAC name
  • (RS)-7-Chloro-3-hydroxy-5-phenyl-1,3-dihydro-1,4-benzodiazepin-2-one
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.009.161
Chemical and physical data
FormulaC15H11ClN2O2
Molar mass286.71 g·mol−1
3D model (JSmol)
Melting point205 to 206 °C (401 to 403 °F)
SMILES
  • O=C1Nc2ccc(Cl)cc2C(c2ccccc2)=NC1O
InChI
  • InChI=1S/C15H11ClN2O2/c16-10-6-7-12-11(8-10)13(9-4-2-1-3-5-9)18-15(20)14(19)17-12/h1-8,15,18,20H N
  • Key:IMAUTQQURLXUGJ-UHFFFAOYSA-N N
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Oxazepam is a short-to-intermediate-acting benzodiazepine. Oxazepam is used for the treatment of anxiety, insomnia, and to control symptoms of alcohol withdrawal syndrome.

It is a metabolite of diazepam, prazepam, and temazepam, and has moderate amnesic, anxiolytic, anticonvulsant, hypnotic, sedative, and skeletal muscle relaxant properties compared to other benzodiazepines.

It was patented in 1962 and approved for medical use in 1964.