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Cyclazocine structure.svg
Systematic (IUPAC) name
Clinical data
Legal status
  •  ?
Routes Oral
CAS number 7346-09-0 N
ATC code None
PubChem CID 19143
IUPHAR ligand 1604
ChemSpider 18063 YesY
UNII J5W1B1159C YesY
KEGG D03618 YesY
Chemical data
Formula C18H25NO 
Molecular mass 271.40 g/mol
 N (what is this?)  (verify)

Cyclazocine is a mixed opioid agonist/antagonist related to dezocine, pentazocine and phenazocine. This family of opioid drugs is called the benzomorphans or benzazocines.[1] It is a KOR agonist and MOR partial agonist, and also has high affinity for the DOR.[2]


Research into the use of cyclazocine for the treatment of bipolar patients with depression was undertaken by Fink and colleagues (1970). It showed that 8 out of 10 patients experienced moderate improvement.

Research during the 1960s and 1970s into the possible use of cyclazocine for management of pain, and later for assisting treatment of narcotic addiction was severely hampered by the drug's psychotomimetic, dysphoric, and hallucinatory effects.[3]

See also[edit]


  1. ^ Archer, S.; Glick, S. D.; Bidlack, J. M. (1996). "Cyclazocine Revisited". Neurochemical Research 21 (11): 1369–1373. doi:10.1007/BF02532378. PMID 8947927. 
  2. ^ Bidlack JM, Cohen DJ, McLaughlin JP, Lou R, Ye Y, Wentland MP (July 2002). "8-Carboxamidocyclazocine: a long-acting, novel benzomorphan". J. Pharmacol. Exp. Ther. 302 (1): 374–80. doi:10.1124/jpet.302.1.374. PMID 12065740. 
  3. ^ Freedman, A. M.; Fink, M.; Sharoff, R.; Zaks, A. (1967). "Cyclazocine and Methadone in Narcotic Addiction" (pdf). The Journal of the American Medical Association 202 (3): 191–194. doi:10.1001/jama.1967.03130160065011. PMID 6072354.