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Temazepam information


Temazepam
Clinical data
Trade namesRestoril, Normison, Nortem, others
AHFS/Drugs.comMonograph
MedlinePlusa684003
License data
  • US DailyMed: Temazepam
Pregnancy
category
  • AU: C
Dependence
liability
High[1][unreliable medical source?]
Routes of
administration
By mouth
Drug classBenzodiazepine
ATC code
  • N05CD07 (WHO)
Legal status
Legal status
  • AU: S4 (Prescription only)[2]
  • BR: Class B1 (Psychoactive drugs)[3]
  • CA: Schedule IV[4]
  • DE: § 48 AMG/§ 1 MPAV (Prescription only) /Anlage III
  • UK: POM (Prescription only)[5]
  • US: Schedule IV[6]
  • UN: Psychotropic Schedule IV
Pharmacokinetic data
Bioavailability96%
MetabolismLiver
Elimination half-life8–20 hours
Duration of action≤8 hours[7]
ExcretionKidney
Identifiers
IUPAC name
  • (RS)-7-Chloro-1,3-dihydro-3-hydroxy-1-methyl-5-phenyl-1,4-benzodiazepin-2-one
CAS Number
  • 846-50-4 checkY
PubChem CID
  • 5391
IUPHAR/BPS
  • 7300
DrugBank
  • DB00231 ☒N
ChemSpider
  • 5198 checkY
UNII
  • CHB1QD2QSS
KEGG
  • D00370 checkY
ChEMBL
  • ChEMBL967 checkY
CompTox Dashboard (EPA)
  • DTXSID8021309 Edit this at Wikidata
ECHA InfoCard100.011.535 Edit this at Wikidata
Chemical and physical data
FormulaC16H13ClN2O2
Molar mass300.74 g·mol−1
3D model (JSmol)
  • Interactive image
SMILES
  • CN1C2=C(C(C3=CC=CC=C3)=NC(O)C1=O)C=C(Cl)C=C2
InChI
  • 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 checkY
  • Key:SEQDDYPDSLOBDC-UHFFFAOYSA-N checkY
 ☒NcheckY (what is this?)  (verify)

Temazepam, sold under the brand name Restoril among others, is a medication of the benzodiazepine class which is generally used to treat severe or debilitating insomnia.[8] It is taken by mouth.[8] Temazepam is rapidly absorbed, and significant hypnotic effects begin in less than 30 minutes and can last for up to eight hours.[9][7] Prescriptions for hypnotics such as temazepam have seen a dramatic decrease since 2010, while anxiolytics such as alprazolam, clonazepam, and lorazepam have increased or remained stable.[10] Temazepam and similar hypnotics, such as triazolam (Halcion) are generally reserved for severe and debilitating insomnia. They have largely been replaced by z-drugs (zopiclone, zolpidem) and atypical antidepressants (trazodone, mirtazapine) as first line treatment for insomnia.[8]

Common side effects include drowsiness, motor and cognitive impairment, lethargy, confusion, euphoria, and dizziness.[8] Serious side effects may include hallucinations, hypotension, respiratory depression, abuse, anaphylaxis, and suicide.[8] Use is generally not recommended together with alcohol or opioids.[8] If the dose is rapidly decreased withdrawal may occur.[8] Use during pregnancy or breastfeeding is not recommended.[11] Temazepam is a short-acting benzodiazepine and hypnotic.[8][7] It works by affecting GABA within the brain.[8]

Temazepam was patented in 1962 and came into medical use in 1969.[12] It is available as a generic medication.[13] In 2021, it was the 208th most commonly prescribed medication in the United States, with more than 2 million prescriptions.[14][15]

  1. ^ "Temazepam". www.drugbank.ca. Retrieved 26 June 2019.
  2. ^ Temaze temazepam 10mg tablet bottle (63863)
  3. ^ Anvisa (31 March 2023). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 4 April 2023). Archived from the original on 3 August 2023. Retrieved 16 August 2023.
  4. ^ "Temazepam Product information". Health Canada. 25 April 2012. Retrieved 20 October 2022.
  5. ^ "Temazepam 10mg/5ml Oral Solution - Summary of Product Characteristics (SmPC)". (emc). 9 April 2021. Retrieved 20 October 2022.
  6. ^ "Restoril- temazepam capsule". DailyMed. 11 February 2021. Retrieved 20 October 2022.
  7. ^ a b c Collins SR (2015). Pharmacology and the Nursing Process. Elsevier Health Sciences. p. 193. ISBN 9780323358286.
  8. ^ a b c d e f g h i "Temazepam Monograph for Professionals". Drugs.com. American Society of Health-System Pharmacists. Retrieved 8 April 2019.
  9. ^ Cite error: The named reference monograph was invoked but never defined (see the help page).
  10. ^ Breen CL, Degenhardt LJ, Bruno RB, Roxburgh AD, Jenkinson R (September 2004). "The effects of restricting publicly subsidised temazepam capsules on benzodiazepine use among injecting drug users in Australia". The Medical Journal of Australia. 181 (6): 300–304. doi:10.5694/j.1326-5377.2004.tb06293.x. PMID 15377238. S2CID 6870892.
  11. ^ "Temazepam (Restoril) Use During Pregnancy". Drugs.com. Retrieved 8 April 2019.
  12. ^ Fischer J, Ganellin CR (2006). Analogue-based Drug Discovery. John Wiley & Sons. p. 537. ISBN 9783527607495.
  13. ^ British national formulary: BNF 76 (76 ed.). Pharmaceutical Press. 2018. p. 481. ISBN 9780857113382.
  14. ^ "The Top 300 of 2021". ClinCalc. Archived from the original on 15 January 2024. Retrieved 14 January 2024.
  15. ^ "Temazepam - Drug Usage Statistics". ClinCalc. Retrieved 14 January 2024.

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Farmaceutici Riuniti SpA in the mid-1970s. It is the fluorinated analogue of temazepam that has powerful hypnotic, sedative, amnesiac, anxiolytic, anticonvulsant...

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suggesting a higher abuse potential of these drugs. In neighboring Finland, temazepam accounts for roughly 40–50% benzodiazepine prescription forgeries annually...

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the drug internationally. Many clandestine temazepam labs are in Eastern Europe. The labs manufacture temazepam by chemically altering diazepam, oxazepam...

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Lorazepam (Ativan) Midazolam (Versed) Nitrazepam (Mogadon) Oxazepam (Serax) Temazepam (Restoril) Triazolam (Halcion) Nonbenzodiazepine hypnotics Eszopiclone...

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nickname or surname Gelignite, also known as blasting jelly or simply jelly Temazepam, a powerful hypnotic drug, street name "jellies" Jellyfish, also known...

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performance impact duration were melatonin (with no impact), zaleplon, temazepam, and zopiclone. The effects on serial reaction time (SRT), logical reasoning...

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Oxazepam

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alcohol withdrawal syndrome. It is a metabolite of diazepam, prazepam, and temazepam, and has moderate amnesic, anxiolytic, anticonvulsant, hypnotic, sedative...

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that Goddard died from an accidental drug overdose of heroin, cocaine, temazepam and vicodin. "Trevor Goddard, 37, Actor; Left Boxing for TV and Films"...

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Camazepam

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names Albego, Limpidon and Paxor. It is the dimethyl carbamate ester of temazepam, a metabolite of diazepam. While it possesses anxiolytic, anticonvulsant...

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Nitemazepam

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was never marketed. It is the 7-nitro instead of 7-chloro analogue of temazepam, and also the 3-hydroxy derivative of nimetazepam, and an active metabolite...

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Lormetazepam

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short to intermediate acting 3-hydroxy benzodiazepine derivative and temazepam analogue. It possesses hypnotic, anxiolytic, anticonvulsant, sedative...

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Diazepam

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concentrations of diazepam and its metabolites desmethyldiazepam, oxazepam, and temazepam, according to samples taken in the hospital and as follow-up. Overdoses...

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Glucuronidation

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steroids Elderly ↑ or unchanged No change found for paracetamol, oxazepam, temazepam, or propranolol. Decreased clearance found for codeine-6-glucuronide,...

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Benzodiazepine use disorder

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chlordiazepoxide, lorazepam, triazolam. A 1985 study found that triazolam and temazepam maintained higher rates of self-injection in both human and animal subjects...

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Karen Lancaume

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Lancaume died by suicide on 28 January 2005, by taking an overdose of temazepam and alcohol, in her ex-boyfriend's apartment in Paris, France. She was...

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