DEA. Temporary Placement of Seven Fentanyl-Related Substances in Schedule I Federal Register, 1 Feb 2018. #9804
EMCDDA. New drugs in Europe, 2016, European Monitoring Centre for Drugs and Drug Addiction, Lisbon, 1 May 2017. 489 kB. #22
Anon. Ordinance amending the Annex to the New Psychoactive Substances Act [Neue-psychoaktive-Stoffe-Gesetz] as well as Annexes to the Narcotics Act [Betäubungsmittelgesetz] 14 Mar 2019. 704 kB. #Valerylfentanyl
Armenian, P; Vo, KT; Barr-Walker, J; Lynch, KL. Fentanyl, fentanyl analogs and novel synthetic opioids: A comprehensive review Neuropharmacology, 1 May 2018, 134, 121–132. 847 kB. https://doi.org/10.1016/j.neuropharm.2017.10.016 #Valerylfentanyl
Anon. INCB: Fentanyl-related substances with no known legitimate use 24 Jun 2018, n/a. 189 kB. #90
Åstrand, A; Guerrieri, D; Vikingsson, S; Kronstrand, R; Green, H. In vitro characterization of new psychoactive substances at the μ-opioid, CB1, 5HT1A, and 5-HT2A receptors—On-target receptor potency and efficacy, and off-target effects Forensic Sci. Int., 1 Dec 2020, 317, 110553. 1.7 MB. https://doi.org/10.1016/j.forsciint.2020.110553 #Valerylfentanyl