What is ISSUP?
We are an international network that unites, connects and shares knowledge across the substance use workforce. We aim to make the work of our members as effective as possible through knowledge sharing, training and networking opportunities.
Who is ISSUP for?
ISSUP is for everyone who is doing something to address substance use in a variety of settings. This includes health and treatment professionals, prevention practitioners, market disruption and supply, law enforcement, policy makers, and community-led groups like youth and volunteers.
54,221 ISSUP Members worldwide
Map showing distribution of ISSUP members around the world
News
ISSUP Newsletter - Issue 228 (28 October 2026)
In this issue, we highlight ISSUP’s participation in an international faith-based meeting in Rome, exploring the role of faith communities in addressing substance use and youth criminal recruitment.
Latest Webinars
Prevención selectiva e indicada: ¿qué nivel preventivo elegir?
ISSUP España le invita cordialmente a participar en su seminario web sobre Prevención selectiva e indicada: ¿qué nivel preventivo elegir?
Location Online
Date 4 November 2026
Knowledge Share
Protecting young people from recruitment into criminal drug networks: Research gaps and priorities for stronger prevention and intervention in the European Union
Published by Dr Eoin O’Meara Daly and Helen Fitzgerald, European Union Drugs Agency safe futures project, Research Evidence into Policy, Programmes and Practice School of Law University of Limerick
Date 30 Sep 2026
Knowledge Share
Public Health Alert: Cychlorphine, a Highly Potent Emerging Synthetic Opioid
Published by Addiction Policy Forum
Date 30 Sep 2026
The ISSUP Exchange Podcast
Faith, Identity and Belonging: Preventing Criminal Recruitment with Tim Rosier Pt. 1
What helps a person change, and what role can faith play in that journey? In this first episode, Tim Rosier joins Professor Goodman Sibeko to reflect on his career across probation, youth justice, prisons and academia, sharing experiences that challenged his understanding of crime, vulnerability and rehabilitation.