Isomethadone

Isomethadone
Clinical data
ATC code None
Legal status
Legal status
Identifiers
Synonyms WIN-1783, BW 47-442
CAS Number 466-40-0
5341-49-1 (HCl)
26594-41-2 ((R)-form)
561-10-4 ((S)-form)
7484-81-2 ((S)-form (HCl))
PubChem (CID) 10072
ChemSpider 9675
UNII 12L95QD6KV YesY
Chemical and physical data
Formula C21H27NO
Molar mass 309.445 g/mol
3D model (Jmol) Interactive image

Isomethadone (INN, BAN; Liden), also known as isoamidone, is a synthetic opioid analgesic and antitussive related to methadone that was used formerly as a pharmaceutical drug but is now no longer marketed.[1][2][3][4] Isomethadone was used as both an analgesic and antitussive. It binds to and activates both the μ- and δ-opioid receptors, with the (S)-isomer being the more potent of its two enantiomers.[5] Isomethadone is a Schedule II controlled substance in the United States, with an ACSCN of 9226 and a 2014 aggregate manufacturing quota of 5 grammes. The salts in use are the hydrobromide (free base conversion ratio 0.793), hydrochloride (0.894), and HCl monohydrate (0.850).[6] Isomethadone is also regulated internationally as a Schedule I controlled substance under the United Nations Single Convention on Narcotic Drugs of 1961.[7]

See also

References

  1. ↑ F.. Macdonald (1997). Dictionary of Pharmacological Agents. CRC Press. p. 1169. ISBN 978-0-412-46630-4. Retrieved 16 May 2012.
  2. ↑ Dr. Ian Morton; Ian K. M. Morton; Judith M. Hall; Dr. Judith Hall (1999). Concise Dictionary of Pharmacological Agents: Properties and Synonyms. Springer. p. 157. ISBN 978-0-7514-0499-9. Retrieved 16 May 2012.
  3. ↑ KEATS AS, BEECHER HK (June 1952). "Analgesic potency and side action liability in man of heptazone, WIN 1161-2, 6-methyl dihydromorphine, Metopon, levo-isomethadone and pentobarbital sodium, as a further effort to refine methods of evaluation of analgesic drugs". The Journal of Pharmacology and Experimental Therapeutics. 105 (2): 109–29. PMID 14928215.
  4. ↑ WINTER CA, FLATAKER L (November 1952). "Antitussive action of d-isomethadone and d-methadone in dogs". Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.). 81 (2): 463–5. doi:10.3181/00379727-81-19912. PMID 13027341.
  5. ↑ Portoghese PS, Poupaert JH, Larson DL, et al. (June 1982). "Synthesis, X-ray crystallographic determination, and opioid activity of erythro-5-methylmethadone enantiomers. Evidence which suggests that mu and delta opioid receptors possess different stereochemical requirements". Journal of Medicinal Chemistry. 25 (6): 684–8. doi:10.1021/jm00348a015. PMID 6284938.
  6. ↑ http://www.deadiversion.usdoj.gov/fed_regs/quotas/2014/fr0825.htm
  7. ↑ Thomas Nordegren (1 March 2002). The A-Z Encyclopedia of Alcohol and Drug Abuse. Universal-Publishers. p. 366. ISBN 978-1-58112-404-0. Retrieved 16 May 2012.


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