Etonitazepyne (N-pyrrolidino etonitazene) is a
benzimidazole derivative with potent
opioid effects which has been sold over the internet as a
designer drug and linked to numerous cases of
overdose.[1][2][3][4]
^Blanckaert P, Balcaen M, Vanhee C, Risseeuw M, Canfyn M, Desmedt B, et al. (September 2021). "Analytical characterization of "etonitazepyne," a new pyrrolidinyl-containing 2-benzylbenzimidazole opioid sold online". Drug Testing and Analysis. 13 (9): 1627–1634.
doi:
10.1002/dta.3113.
hdl:1854/LU-8737722.
PMID34145779.
S2CID235479893.