What Is a Managed Alcohol Program? An Introduction for Institutional Decision-Makers
Last Updated: February 2026 | Reading Time: 4 minutes
What a Managed Alcohol Program Is
A Managed Alcohol Program is a harm reduction intervention designed for people experiencing severe alcohol use disorder alongside housing instability or homelessness. The defining feature of a MAP is that it provides a regulated supply of beverage alcohol to participants, typically on a scheduled basis, without requiring abstinence as a condition of access or continued participation.
This is not a treatment model in the conventional sense. MAPs do not aim to cure alcohol use disorder or achieve abstinence as a primary outcome. They aim to reduce the harms associated with severe, unmanaged alcohol use: non-beverage alcohol consumption (hand sanitizer, mouthwash, rubbing alcohol), withdrawal-related medical emergencies, alcohol-related injury and illness, and the social and economic instability that accompanies chaotic drinking. MAPs provide these services alongside housing support, nutritious food, primary care connection, medication dispensing, and social and cultural programming.
The Canadian MAP literature, developed through the CMAPS research program at the University of Victoria, has documented that MAPs stabilize alcohol use, reduce alcohol-related harms, improve quality of life, and decrease acute healthcare utilization among their participants. This evidence base for the MAP model itself is well-established before cannabis substitution enters the picture.
Why Cannabis Substitution Is Relevant to MAPs
The integration of cannabis substitution into MAP services follows from a straightforward observation: MAP participants were already using cannabis to moderate their alcohol consumption before any formal program existed. The pre-implementation feasibility study by Pauly, Brown, Chow, Wettlaufer, Graham, Urbanoski et al. (2021, Harm Reduction Journal, 18: 65) interviewed 19 MAP participants across six Canadian MAPs and found that 63% were already substituting cannabis for alcohol at baseline, most often on a weekly basis and specifically to manage cravings and withdrawal, without a regulated supply, without medical authorization, and without program support. 84% of MAP participants expressed willingness to participate in a formal cannabis substitution program if one were offered.
The research question that CMAPS was funded by Health Canada to answer was whether providing a regulated, medically prescribed cannabis supply within a MAP context would formalize and amplify what participants were already doing informally. The Ottawa findings by Goulet-Stock, Hacksel, Scandiuzzi, Boyd, Pauly & Stockwell (2026, International Journal of Drug Policy, 147: 105083) answer that question in the affirmative, with a quantified effect size: each additional 0.4-gram joint consumed was associated with an estimated 2.43 fewer mean daily standard drinks. The substitution effect was stable over time at the between-person level, not a day-to-day trade-off.
How MAPs Are Structured
MAPs integrate alcohol provision with housing support, primary care services, and social and cultural interventions. No single component produces the outcomes in isolation. This matters for institutional decision-makers because it means cannabis substitution is not a standalone intervention being added to alcohol supply; it is an additional harm reduction tool being integrated into a comprehensive support model.
Vancouver’s MAP, where High Hopes Research Society operated as the cannabis substitution program provider, illustrates this: the site dispensed homebrewed beer and wine to approximately 150 members, provided nutritious food and snacks, connected members to regular primary care, dispensed medications, operated a non-beverage alcohol exchange program, and compensated peer leaders for brewing and community work. The cannabis substitution program operated within this structure.
What Institutional Decision-Makers Need to Know
For clinical directors and program administrators evaluating MAP services or cannabis substitution programming, several things follow from the evidence.
The model requires peer infrastructure. The feasibility evidence and the pilot outcomes both document that peer researchers and peer workers are structural requirements, not optional additions. Programs without embedded peer capacity are not implementing the model that produced the outcomes in evidence.
The model requires a licensed supply. Cannabis substitution within a MAP requires a federally licensed Canadian producer. High Hopes Research Society, under which Flora Initiative operates, holds a Health Canada producer without possession licence that enables direct supply to institutional program sites.
The model has a quantified effect size from a Canadian peer-reviewed study in a major journal. Institutions no longer have to evaluate cannabis substitution as a conceptually promising but unproven intervention. There is a two-year, longitudinal, mixed-effects modelling study published in 2026 with a specific, interpretable result.
This article summarizes published peer-reviewed research for informational purposes. It is intended for program administrators and healthcare professionals.
References
- Goulet-Stock, Hacksel, Scandiuzzi, Boyd, Pauly & Stockwell (2026). International Journal of Drug Policy, 147: 105083. DOI: 10.1016/j.drugpo.2025.105083
- Pauly, Brown, Chow, Wettlaufer, Graham, Urbanoski et al. (2021). Harm Reduction Journal, 18: 65. DOI: 10.1186/s12954-021-00512-5