“…The nonmedical use of benzodiazepines among opioid users is a serious concern as benzodiazepines can markedly increase the harmful effects of opioids, particularly risk for fatal and non-fatal overdose (Chan, Stajic, Marker, Hoffman, & Nelson, 2006; Dietze, Jolley, Fry, & Bammer, 2005; Dilokthornsakul et al, 2016; Jann, Kennedy, & Lopez, 2014; Jones & McAninch, 2015; Kerr et al, 2007; Perret, Deglon, Kreek, Ho, & La Harpe, 2000; Toblin, Paulozzi, Logan, Hall, & Kaplan, 2010; White & Irvine, 1999). While opioids are the most common drug class involved in overdose, most overdoses involve more than one substance (McGregor, Darke, & Christie, 1998; Oliver & Keen, 2003; Ward & Barry, 2001; Wunsch, Nakamoto, Behonick, & Massello, 2009).…”