Chemistry:Lefetamine

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Short description: Chemical compound
Lefetamine
Lefetamine.svg
Lefetamine3d.png
Clinical data
Routes of
administration
Oral
ATC code
  • none
Legal status
Legal status
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
Chemical and physical data
FormulaC16H19N
Molar mass225.335 g·mol−1
3D model (JSmol)
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Lefetamine (Santenol) is a drug which is a stimulant and also an analgesic with effects comparable to codeine.

Discovery

Lefetamine-related 1,2-diphenylethylamines were invented in the 1940s and showed weak analgesic activity.[1]

It was investigated in Japan in the 1950s.[2] The L-isomer showed weak analgesic action comparable to codeine and antitussive action far weaker than codeine. The d-isomer showed no such activity but caused seizures in rats.[3][4]

Society and culture

It was abused in Japan during the 1950s. In a small study in 1989 it showed some effect against opioid withdrawal symptoms without causing withdrawal symptoms itself. It was concluded that it may be an opioid partial agonist.[5]

It has been abused in Europe; in 1989 a small study of 15 abusers and some volunteers found that it had some partial similarity to opioids, that it produced withdrawal symptoms, and had dependence and abuse potential to a certain degree.[6]

In a small study in 1994, it was compared to clonidine and buprenorphine in the detoxification of methadone patients and found to be inferior to both of them.[7]

Regulation may vary; it does not appear as either a narcotic or non-narcotic under the US Controlled Substances Act 1970 [8]

The Canadian Controlled Drugs and Substances Act was amended in 2016 to include the substance as a Schedule III substance. Possession without legal authority can result in maximum 3 years imprisonment. Further, Health Canada amended the Food and Drug Regulations in May, 2016 to classify Lefetamine as a controlled drug.[9]

Research

Some related pyrrylphenylethanones had analgetic activity comparable to morphine.[10] Some pyrrole analogues were reported to have analgesic effects comparable to lefetamine and being devoid of neurotoxic properties.[11]

See also

References

  1. "Testing diphenylethylamine compounds for analgesic action". The Journal of Physiology 104 (1): 47–51. June 1945. doi:10.1113/jphysiol.1945.sp004105. PMID 16991666. 
  2. Ogyu K, Fujimura H, Yamakawa Y, Mita I, "Verfahren zur Herstellung von antitussiv wirksamem l-1,2-Diphenyl-1-dimethylaminoaethan und dessen Salzen", DE patent 1159958, issued 1963-12-27, assigned to Institut Seikatsu Kagaku Kenkyusho (Scientific Research Institute for Practical Life, Kyoto)
  3. "Pharmacological Studies on Diphenylalkylamine Derivatives. (I)". Bulletin of the Institute for Chemical Research, Kyoto University 39 (1): 67–77. 1961. http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/75783/1/chd039_1_067.pdf. Retrieved 2011-09-25. 
  4. "Pharmacological Studies on Diphenylalkylamine Derivatives. (II): On the Actions of l-1,2-Diphenyl-1-dimethylaminoethane Hydrochloride (SPA)". Bulletin of the Institute for Chemical Research, Kyoto University 39 (1): 78–94. 1961. http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/75782/1/chd039_1_078.pdf. Retrieved 2012-06-30. 
  5. "Lefetamine: new abuse of an old drug--clinical evaluation of opioid activity". Drug and Alcohol Dependence 24 (2): 95–101. October 1989. doi:10.1016/0376-8716(89)90071-9. PMID 2571492. 
  6. "Lephetamine abuse and dependence: clinical effects and withdrawal syndrome". British Journal of Addiction 84 (1): 89–95. January 1989. doi:10.1111/j.1360-0443.1989.tb00555.x. PMID 2917208. 
  7. "Opiate detoxification of methadone maintenance patients using lefetamine, clonidine and buprenorphine". Drug and Alcohol Dependence 36 (2): 139–45. October 1994. doi:10.1016/0376-8716(94)90096-5. PMID 7851281. 
  8. "DEA Diversion Control Division". http://www.deadiversion.usdoj.gov/quotas/conv_factor/index.html. 
  9. "Regulations Amending the Food and Drug Regulations (Parts G and J — Lefetamine, AH-7921, MT-45 and W-18)". June 2016. http://www.gazette.gc.ca/rp-pr/p2/2016/2016-06-01/html/sor-dors106-eng.php. 
  10. "Pyrrylphenylethanones related to cathinone and lefetamine: synthesis and pharmacological activities". Archiv der Pharmazie 325 (7): 403–9. July 1992. doi:10.1002/ardp.19923250707. PMID 1417455. 
  11. "Synthesis, neuropsychopharmacological effects and analgesic-antiinflammatory activities of pyrrole analogues of lefetamine". Farmaco (Societa Chimica Italiana) 44 (9): 763–77. September 1989. PMID 2604832.