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.
53,127 ISSUP Members worldwide
Map showing distribution of ISSUP members around the world
News
ISSUP Newsletter - Issue 224 (26 August 2026)
Read the latest issue of the August ISSUP Newsletter. In this issue, we invite you to the ISSUP 2026 Virtual Event, Connecting Sectors, Creating Impact: A United Response on Drugs, taking place from 22–23 September 2026.
Latest Webinars
ISSUP Hosts Three-Part Webinar Series on Cognitive Behavioural Therapy for Substance Use Disorders
ISSUP Indonesia, ISSUP Sri Lanka and ISSUP Kazakhstan, welcome you to a three-part webinar series on Cognitive Behavioural Therapy (CBT) in the Treatment of Substance Use Disorders. This regional webinar series will explore how CBT can be applied and adapted to address substance use disorders across diverse populations and service settings in Asia. Bringing together experts from Sri Lanka, Indonesia, Kazakhstan, and international organisations, the series will examine evidence-based approaches to treatment, recovery support, and mental health care in clinical, community, correctional, and humanitarian contexts.
Knowledge Share
The introduction of drug Arrest Referral schemes in London: A partnership between drug services and the police
Published by Gillian Hunter, Tim McSweeney, Paul J. Turnbull, The introduction of drug Arrest Referral schemes in London: A partnership between drug services and the police, International Journal of Drug Policy, Volume 16, Issue 5, 2005, Pages 343-352, ISSN 0955-3959, https://doi.org/10.1016/j.drugpo.2005.06.008.
Knowledge Share
Psychosocial determinants of recidivism risk among incarcerated individuals with a history of substance use: A systematic review
Published by Syasyila, K., Kamaluddin, M., Nor, H. A. Mohd., & Singh, P. S. J. (2025). Psychosocial determinants of recidivism risk among incarcerated individuals with a history of substance use: A systematic review. PLOS One, 20. https://doi.org/10.1371/journal.pone.0327810
Date 11 Jul 2025
The ISSUP Exchange Podcast
Democratising Evidence with David Patton Pt. 4: The Future of Evidence
Published by The ISSUP Exchange - Episode 6.4
Date 07 Jul 2026