Characterization of anti-fentanyl antibodies as antagonists of ultra-toxic, clinically relevant or endogenous opioids.  Endt F, Steinritz D, Amend N, Gudermann T, Breit A.  Arch Toxicol. 2026 Jun;100(6):2503-2515. doi: 10.1007/s00204-026…

'Rhino Tranq' Withdrawal Is Rising: Are Clinicians Ready? Medetomidine, a veterinary sedative increasingly found in the illicit fentanyl supply, is presenting clinicians with a new challenge: a withdrawal syndrome that can emerge within hours, caus…

Synthetic opioid contamination in Brazil's illicit drug market: an emerging and underdetected risk.  Campello de Oliveira M, Castaldelli-Maia JM.  Lancet Reg Health Am. 2026 Aug 1;61:101587. doi: 10.1016/j.lana.2026.101587. PMID: 4257703…

Kanada: Judge tosses drug trafficking convictions for B.C. compassion club founders after constitutional challenge The founders of a Vancouver-based compassion club that sold uncontaminated drugs to its members have had their drug trafficking convi…

A review of policy actions implemented during a toxic drug public health emergency in British Columbia, Canada (2016-2024).  Zanette M, Enns B, Carter A, Compton M, Daly P, Davison C, Gustafson R, Hedden L, Kerr T, Schnepel K, Nosyk B. …

The evolving epidemiology of opioid use disorder: polysubstance use, drug supply transformation, and policy implications.  Mandapati NK, Tovar DC, Bindlish R, Hernandez YL, Alves MJ, Baum MK, Aggarwal S.  Front Public Health. 2026 Sep 9;…