New Synthetic Opioid Protonitazene Increasing in Prevalence as “Nitazenes” Gain Traction Across the United States and Canada

Alex J. Krotulski, PhD; Donna M. Papsun, MS, D-ABFT; Sara E. Walton, MS; Barry K. Logan, PhD, F-ABFT

CSFRE; December 10, 2021