Peer-led drug checking in Chile: a case study of the country’s first harm reduction service at electronic music events

This peer-led harm reduction intervention provided timely and practical information to PWUD. The findings indicate that MDMA was the most common substance tested among attendees of electronic music events, that tusi showed considerable variability in its composition, and that cocaine was frequently adulterated with other substances. Together, these results underscore the need to strengthen and expand harm reduction initiatives in Chile, such as community-based drug checking programs, that provide information about substances and education on safer drug use.