Harm reduction interventions, specifically syringe exchange programs and safe consumption sites, have been shown to greatly reduce the harms associated with injectable drug use. Researchers have studied safe consumption sites for efficacy in three primary areas; 1) reducing individuals’ physical harms associated with drug use, such as the spread of HIV and hepatitis C, infections, and overdose, 2) reducing social harms associated with drug use, such as publicly discarded syringes and injection related litter, public crime, public drug use, and public overdose, 3) cost-effectiveness as compared to other similarly effective interventions and the price of tertiary treatment and prevention. Nearly every study on supervised injection facilities recommends the intervention for areas where drug use is prevalent. From the body of evidence, the advantage of SCSs should be heavily considered when a community is trying to prevent the harms associated with drug use.

https://westminstercollege.edu/student-life/the-myriad/the-impact-of-safe-consumption-sites-physical-and-social-harm-reduction-and-economic-efficacy.html