Poly-substance use and related harms: A systematic review of harm reduction strategies implemented in recreational settings

▶ Review of healthcare responses to poly-substance use within recreational settings. ▶ Harm reduction responses rarely addressed poly-substance use. ▶ Large scale prospective programmes are seldom reported in peer-reviewed literature. ▶ Limited findings of robustly evaluated harm reduction programmes. ▶ The heterogeneity of findings prevents generalisability of study results.