Implementing Harm Reduction Vending Machines to Reduce Opioid Overdose Risk: Description of a Centralized Implementation Model, Pros, Cons, and Lessons Learned.

Organizations perceived HRVMs as valuable additions to their harm reduction activities and saw few challenges associated with hosting a machine. The centralized rollout process facilitated the ability of individual organizations to implement a machine. Future studies are needed to fully understand the cost-benefit of HRVMs, as well as the impact of HRVMs on key substance use and overdose outcomes.