The aim of this research is to gain insight into the experiences of experts working in harm reduction programs, respectively to see what are the negative and / or positive experiences of experts in the work of the program and where they see the possibilities for advancement of program. The research was conducted with experts - persons employed within associations/organizations working in harm reduction programs. A deliberate sample was used and there were seven experts who participated in this study. The results showed certain positive aspects of the program such as the direct effects of program implementation, professional helping relationships between beneficiaries and professionals, the benefits of working in harm reduction programs, positive working conditions. On the other hand, they pointed out some negative aspects such as practical flaws in the daily work of the Association, the existence of the risk of burnout among professionals, certain risks in the work associated with the consequences of drug addiction and the fact that addicts are rejected by the general population. When it comes to the possibilities of program advancement, it is mentioned strengthening the institutional capacities of organizations, expanding the activities of harm reduction programs as well as wider sensitization of the population.