Etoxeridine (Carbetidine, Atenos) is a 4-phenylpiperidine derivative that is related to the clinically used opioid analgesic drug pethidine (meperidine).
Etoxeridine was developed in the 1950s and investigated for use in surgical anesthesia, however it was never commercialized and is not currently used in medicine. As with other opioids which were not in clinical use during the drafting of the Controlled Substances Act, it is categorized as a Schedule I narcotic.
References
BE 558883 https://worldwide.espacenet.com/textdoc?DB=EPODOC&IDX=BE558883 ↩
Merlevede E, Levis S (1958). "Pharmacological study of carbetidine, a new synthetic analgesic". Archives Internationales de Pharmacodynamie et de Thérapie (in French). 115 (1–2): 213–232. PMID 13545901. /wiki/PMID_(identifier) ↩
Sironi PG (1959). "Brief note on a new synthetic analgesic: carbetidine hydrochloride". Minerva Anestesiologica (in Italian). 25 (6): 251–254. PMID 13674097. /wiki/PMID_(identifier) ↩
Crawford JS, Foldes FF (August 1959). "Studies on the respiratory and circulatory effects of carbetidine HCI used for supplementation of thiopentone sodium-nitrous oxide-oxygen anaesthesia". British Journal of Anaesthesia. 31 (8): 348–51. doi:10.1093/bja/31.8.348. PMID 13812715. https://doi.org/10.1093%2Fbja%2F31.8.348 ↩