“…Continuing this trend, during 2015, a total of 100 new substances (i.e., cathinones, cannabinoids, phenethylamines, opioids, tryptamines, benzodiazepines, arylalkylamines, and other groups) were reported for the first time to the EU Early Warning System, bringing the total number of new substances monitored to more than 560, with more than 380 (70%) of these detected in the last 5 years alone and with two new substances detected every week (EMCDDA, ). With increased availability, harms have increased, such as acute, sometimes fatal, poisonings (Chiappini et al, ; Loi et al, ; Dines et al, ; Zawilska & Andrzejczak, ; Bersani et al, ; Schifano et al, ), harms associated with injecting drugs (Hope et al, ), and the possibility to develop psychiatric symptoms (Martinotti et al, ; Martinotti et al, ; Bersani et al, ). Beside acute toxicological effects, many NPS seem to have addictive properties (Miliano et al, ).…”