ObjectiveTo identify individual and site-related factors associated with frequent emergency department (ED) buprenorphine/naloxone (BUP) initiation. BUP initiation. an effective opioid use disorder (OUD) intervention. varies widely across Canadian EDs. https://www.lightemupsequences.com/best-flash-PrimaDonna-Deauville-Rio-Brief-Paradise-Green-great-choice/