T3DB Logo

Showing toxin card for Temazepam (T3D2719)

Legend: toxin field target field

Version 1.0
Creation Date 2009-07-21 20:26:20
Update Date 2010-05-18 20:59:26
Accession Number T3D2719
Name Temazepam
Compound Type
  • Adjuvant, Anesthesia
  • Anti-Anxiety Agent
  • Benzodiazepine
  • Drug
  • GABA Modulator
  • Hypnotic and Sedative
Description A benzodiazepine that acts as a gamma-aminobutyric acid modulator and anti-anxiety agent. [PubChem]
Synonyms
  1. Hydroxydiazepam
  2. Methyloxazepam
  3. N-Methyloxazepam
  4. Oxydiazepam
Chemical IUPAC Name 7-chloro-3-hydroxy-1-methyl-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-2-one
Chemical Formula C16H13ClN2O2
Chemical Structure Structure
CAS Registry Number 846-50-4
InChI Identifier InChI=1S/C16H13ClN2O2/c1-19-13-8-7-11(17)9-12(13)14(18-15(20)16(19)21)10-5-3-2-4-6-10/h2-9,15,20H,1H3
InChI Key InChIKey=SEQDDYPDSLOBDC-UHFFFAOYSA-N
PubChem Compound ID 5391 Link Image
KEGG ID Not Available
UniProt ID Not Available
OMIM ID Not Available
ChEBI ID Not Available
BioCyc ID Not Available
SuperToxic ID Not Available
CTD ID Not Available
Stitch ID Temazepam Link Image
DrugBank ID DB00231 Link Image
PDB ID Not Available
ACToR ID Not Available
Wikipedia Link http://en.wikipedia.org/wiki/Temazepam Link Image
Monoisotopic Mass 300.066555
MOL File Show
PDB File Show
SDF File Show
SMILES CN1C2=CC=C(Cl)C=C2C(=NC(O)C1=O)C1=CC=CC=C1
Appearance Not Available
Melting Point 119-121oC
Solubility 164 mg/L
Predicted LogP 2.7873
Route of Exposure Oral
Mechanism of Action Benzodiazepines bind nonspecifically to benzodiazepine receptors, which affects muscle relaxation, anticonvulsant activity, motor coordination, and memory. As benzodiazepine receptors are thought to be coupled to gamma-aminobutyric acid-A (GABAA) receptors, this enhances the effects of GABA by increasing GABA affinity for the GABA receptor. Binding of the inhibitory neurotransmitter GABA to the site opens the chloride channel, resulting in a hyperpolarized cell membrane that prevents further excitation of the cell.
Metabolism Hepatic. Temazepam is completely metabolized through conjugation prior to excretion. The major metabolite is the O-conjugate of temazepam (90%).
Toxicity Values LD50: 1963 mg/kg (oral, mice) (T343) LD50: 1833 mg/kg (oral, rat) (T343) LD50: >2400 mg/kg (oral, rabbit) (T343)
Lethal Dose Not Available
Carcinogenicity (IARC Classification) Not Available
Uses/Sources Officially indicated for severe insomnia and other severe or disabling sleep disorders.
Minimum Risk Level Not Available
Health Effects They cause slurred speech, disorientation and "drunken" behavior. They are physically and psychologically addictive.
Symptoms Not Available
Treatment If the patient is conscious, vomiting should be induced mechanically or with emetics. Gastric lavage should be employed utilizing concurrently a cuffed endotracheal tube if the patient is unconscious to prevent aspiration and pulmonary complications. Maintenance of adequate pulmonary ventilation is essential. The use of pressor agents intravenously may be necessary to combat hypotension. Fluids should be administered intravenously to encourage diuresis. (V650)
General References
  • T345 - Oelschlager H: [Chemical and pharmacologic aspects of benzodiazepines] Schweiz Rundsch Med Prax. 1989 Jul 4;78(27-28):766-72. [PubMed Link Image]
  • T346 - Vozeh S: [Pharmacokinetic of benzodiazepines in old age] Schweiz Med Wochenschr. 1981 Nov 21;111(47):1789-93. [PubMed Link Image]
  • T348 - Rooke KC: The use of flurazepam (dalmane) as a substitute for barbiturates and methaqualone/diphenhydramine (mandrax) in general practice. J Int Med Res. 1976;4(5):355-9. [PubMed Link Image]
  • T343 - Drugs.com
  • T347 - Shats V, Kozacov S: [Falls in the geriatric department: responsibility of the care-giver and the hospital] Harefuah. 1995 Jun 1;128(11):690-3, 743. [PubMed Link Image]
  • T344 - Rickels K: The clinical use of hypnotics: indications for use and the need for a variety of hypnotics. Acta Psychiatr Scand Suppl. 1986;332:132-41. [PubMed Link Image]
Targets
  1. Translocator protein
Target 1 [top]
Target 1 ID 1151
Target 1 Name Translocator protein
Target 1 Mechanism of Action Benzodiazepines bind nonspecifically to benzodiazepine receptors, which affects muscle relaxation, anticonvulsant activity, motor coordination, and memory. As benzodiazepine receptors are thought to be coupled to gamma-aminobutyric acid-A (GABAA) receptors, this enhances the effects of GABA by increasing GABA affinity for the GABA receptor. Binding of the inhibitory neurotransmitter GABA to the site opens the chloride channel, resulting in a hyperpolarized cell membrane that prevents further excitation of the cell.
Target 1 Description Responsible for the manifestation of peripheral-type benzodiazepine recognition sites and is most likely to comprise binding domains for benzodiazepines and isoquinoline carboxamides. May play a role in the transport of porphyrins and heme. Plays a role in the transport of cholesterol across mitochondrial membranes in steroidogenic cells (By similarity)
Target 1 Synonyms
  1. Peripheral-type benzodiazepine receptor; PBR; PKBS; Mitochondrial benzodiazepine receptor
Target 1 Gene Name TSPO
Target 1 Protein Sequence >Translocator protein
MAPPWVPAMGFTLAPSLGCFVGSRFVHGEGLRWYAGLQKPSWHPPHWVLGPVWGTLYSAM
GYGSYLVWKELGGFTEKAVVPLGLYTGQLALNWAWPPIFFGARQMGWALVDLLLVSGAAA
ATTVAWYQVSPLAARLLYPYLAWLAFATTLNYCVWRDNHGWHGGRRLPE
Target 1 Number of Residues 169
Target 1 Molecular Weight 18778.7
Target 1 Theoretical pI 9.33
Target 1 GO Classification
Function
Not Available
Process
Not Available
Component
cell
membrane
intrinsic to membrane
integral to membrane
Target 1 General Function Signal transduction mechanisms
Target 1 Pathways Not Available
Target 1 Reactions Not Available
Target 1 Signals
  • None
Target 1 Transmembrane Regions
  • 6-26
  • 47-67
  • 80-100
  • 106-126
  • 135-155
Target 1 Essentiality Non Essential
Target 1 Domain Function PF03073:TspO_MBR
Target 1 GenBank ID Protein Not Available
Target 1 UniProtKB ID P30536 Link Image
Target 1 Cellular Location Mitochondrion membrane
Target 1 Gene Sequence >510 bp
CCCCTGAACAGCAGCTGCAGCAGCCATGGCCCCGCCCTGGGTGCCCGCCATGGGCTTCAC
GCTGGCGCCCAGCCTGGGGTGCTTCGTGGGCTCCCGCTTTGTCCACGGCGAGGGTCTCCG
CTGGTACGCCGGCCTGCAGAAGCCCTCGTGGCACCCGCCCCACTGGGTGCTGGGCCCTGT
CTGGGGCACGCTCTACTCAGCCATGGGGTACGGCTCCTACCTGGTCTGGAAAGAGCTGGG
AGGCTTCACAGAGAAGGCTGTGGTTCCCCTGGGCCTCTACACTGGGCAGCTGGCCCTGAA
CTGGGCATGGCCCCCCATCTTCTTTGGTGCCCGACAAATGGGCTGGGCCTTGGTGGATCT
CCTGCTGGTCAGTGGGGCGGCGGCNGCCACTACCGTGGCCTGGTACCAGGTGAGCCCGCT
GGCCGCCCGCCTGCTCTACCCCTACCTGGCCTGGCTGGCCTTCGCGACCACACTCAACTA
CTGCGTATGGCGGGACAACCATGGCTGGCA
Target 1 GenBank Gene ID Not Available
Target 1 GeneCard ID TSPO Link Image
Target 1 GenAtlas ID TSPO Link Image
Target 1 HGNC ID HGNC:1158 Link Image
Target 1 Chromosome Location Chromosome:22
Target 1 Locus 22q13.31
Target 1 SNPs SNPJam Report Link Image
Target 1 Toxin References
  • T349 - Dobbin M, Martyres RF, Clode D, Champion De Crespigny FE: Association of benzodiazepine injection with the prescription of temazepam capsules. Drug Alcohol Rev. 2003 Jun;22(2):153-7. [PubMed Link Image]
  • T350 - Mant A, Whicker SD, McManus P, Birkett DJ, Edmonds D, Dumbrell D: Benzodiazepine utilisation in Australia: report from a new pharmacoepidemiological database. Aust J Public Health. 1993 Dec;17(4):345-9. [PubMed Link Image]
  • T245 - Miller EI, Wylie FM, Oliver JS: Detection of benzodiazepines in hair using ELISA and LC-ESI-MS-MS. J Anal Toxicol. 2006 Sep;30(7):441-8. [PubMed Link Image]
Target 1 General References 1847678; 7721091; 16189298; 15461802; 10591208; 15489334; 9915832; 16822554

This project is supported by Genome Alberta & Genome Canada, a not-for-profit organization that is leading Canada's national genomics strategy with $600 million in funding from the federal government.