Medetomidine found in green ‘S 90 3’ pill

[issued 30 October, published 1 Novemeber 2026] A green rectangular pill marked ‘S 90 3’ and two break lines splitting the pill into thirds, resembling an amprazolam (‘Xanax’) tablet, was submitted to CanTEST with uncertain expectations about its contents as either ‘alprazolam’ or ‘MDMA’. It has been identified as medetomidine, a potent non-opioid, non-benzodiazepine sedative.