Etizolam

Etizolam
Clinical data
Trade namesEtizest, Etilaam, Etizex, Depas, Sedekopan, Pasaden
Dependence
liability
Moderate
Routes of
administration
Oral, sublingual, rectal
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability93%
MetabolismHepatic
Elimination half-life3.4 hours (main metabolite is 8.2 hours)
Duration of action5-7 hours
ExcretionKidney
Identifiers
  • 4-(2-Chlorophenyl)-2-ethyl-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.188.773
Chemical and physical data
FormulaC17H15ClN4S
Molar mass342.85 g·mol−1
3D model (JSmol)
  • ClC1=CC=CC=C1C2=NCC3=NN=C(C)N3C4=C2C=C(CC)S4
  • InChI=1S/C17H15ClN4S/c1-3-11-8-13-16(12-6-4-5-7-14(12)18)19-9-15-21-20-10(2)22(15)17(13)23-11/h4-8H,3,9H2,1-2H3 Y
  • Key:VMZUTJCNQWMAGF-UHFFFAOYSA-N Y
 NY (what is this?)  (verify)

Etizolam (marketed under numerous brand names) is a thienodiazepine derivative which is a benzodiazepine analog. The etizolam molecule differs from a benzodiazepine in that the benzene ring has been replaced by a thiophene ring and triazole ring has been fused, making the drug a thienotriazolodiazepine.

Although a thienodiazepine, etizolam is clinically regarded as a benzodiazepine because of its mode of action via the benzodiazepine receptor and directly targeting GABAA allosteric modulator receptors.

It possesses anxiolytic, amnesic, anticonvulsant, hypnotic, sedative and skeletal muscle relaxant properties.

It was patented in 1972 and first approved for medical use in Japan in 1984.

As of April 2021, the export of etizolam has been banned in India.