Pyrazolam

Pyrazolam
Clinical data
Routes of
administration
Oral, Sublingual, rectal
Legal status
Legal status
Pharmacokinetic data
Biological half-life 17 hours
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
Chemical and physical data
Formula C16H12BrN5
Molar mass 354.204 g/mol
3D model (JSmol)

Pyrazolam is a benzodiazepine derivative originally developed by a team led by Leo Sternbach at Hoffman-La Roche in the 1970s,[1] and subsequently "rediscovered" and sold as a designer drug starting in 2012.[2][3][4][5]

Pyrazolam has structural similarities to alprazolam[6] and bromazepam. Unlike other benzodiazepines, pyrazolam does not appear to undergo metabolism, instead being excreted unchanged in the urine.[2][7] It is most selective for the α2 and α3 subtypes of the GABAA receptor.[8]

United Kingdom

In the UK, pyrazolam has been classified as a Class C drug by section 5 of the May 2017 amendment to The Misuse of Drugs Act 1971 along with several other designer benzodiazepine drugs.[9]

See also

References

  1. US 3954728, "Preparation of triazolo benzodiazepines and novel compounds"
  2. 1 2 Moosmann, B.; Hutter, M.; Huppertz, L. M.; Ferlaino, S.; Redlingshöfer, L.; Auwärter, V. (July 2013). "Characterization of the designer benzodiazepine pyrazolam and its detectability in human serum and urine". Forensic Toxicology. 31 (2): 263–271. doi:10.1007/s11419-013-0187-4.
  3. Bjoern Moosmann; Leslie A King; Volker Auwärter (June 2015). "Designer benzodiazepines: A new challenge". World Psychiatry. 14 (2): 248. PMC 4471986Freely accessible. PMID 26043347. doi:10.1002/wps.20236.
  4. Madeleine Pettersson Bergstrand; Anders Helander; Therese Hansson; Olof Beck (2016). "Detectability of designer benzodiazepines in CEDIA, EMIT II Plus, HEIA, and KIMS II immunochemical screening assays". Drug Testing and Analysis. PMID 27366870. doi:10.1002/dta.2003.
  5. Høiseth, Gudrun; Tuv, Silja Skogstad; Karinen, Ritva (2016). "Blood concentrations of new designer benzodiazepines in forensic cases". Forensic Science International. 268: 35–38. PMID 27685473. doi:10.1016/j.forsciint.2016.09.006.
  6. Hester Jr, J. B.; Rudzik, A. D.; Kamdar, B. V. (November 1971). "6-Phenyl-4H-s-triazolo[4,3-a][l,4]benzodiazepines Which Have Central Nervous System Depressant Activity". J. Med. Chem. 14 (11): 1078–1081. PMID 5165540. doi:10.1021/jm00293a015.
  7. Characterization of the designer benzodiazepines pyrazolam and flubromazepam and study on their detectability in human serum and urine samples, B. Moosmann, M. Hutter, L. M. Huppertz and V. Auwärter
  8. Hester, J. B.; von Voigtlander, P. (November 1979). "6-Aryl-4H-s-triazolo[4,3-a][1,4]benzodiazepines. Influence of 1-substitution on pharmacological activity". Journal of Medicinal Chemistry. 22 (11): 1390–1398. PMID 42799. doi:10.1021/jm00197a021.
  9. "The Misuse of Drugs Act 1971 (Amendment) Order 2017".
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