Ryan McNeil, PhD
Associate Professor of Medicine (General Medicine)Cards
Appointments
Additional Titles
Director of Harm Reduction Research, Program in Addiction Medicine
About
Titles
Associate Professor of Medicine (General Medicine)
Director of Harm Reduction Research, Program in Addiction Medicine
Biography
Dr. McNeil's research examines how forces operating within the risk environments of people who use drugs shape risk and harm. He has led studies examining: (1) social, structural, and environmental influences on the implementation and effectiveness of harm reduction and addiction treatment interventions, including supervised consumption services; (2) the influence of housing and housing-based interventions on overdose-related risks; (3) approaches to the management of stimulant use disorders. His foundational research on harm reduction approaches, including supervised consumption services and safe supply, has been instrumental to informing their scale-up.
Dr. McNeil regularly provides expert advice to health care organizations and governments on the development, implementation, and optimization of harm reduction and addiction treatment interventions. Pursuant to the goal of meaningfully involving people who use drugs in all stages of the research process, he actively collaborates with community-based organizations, including peer-driven drug user, sex worker, and tenant rights organizations, to align his research with community priorities and provide opportunities for people with lived experience to co-lead and engage in research.
Appointments
General Internal Medicine
Associate Professor on TermPrimarySocial and Behavioral Sciences
Assistant ProfessorSecondary
Other Departments & Organizations
Research
Overview
Medical Research Interests
Public Health Interests
Research at a Glance
Research Interests
Drug Users
Publications
2025
Reimagining subjectivities in place: Necropolitical logics of safer supply and housing in Vancouver's Downtown Eastside
Fleming T, Boyd J, McNeil R. Reimagining subjectivities in place: Necropolitical logics of safer supply and housing in Vancouver's Downtown Eastside. Social Science & Medicine 2025, 372: 117930. PMID: 40088666, DOI: 10.1016/j.socscimed.2025.117930.Peer-Reviewed Original ResearchConceptsVancouver's Downtown EastsideSocial sufferingDowntown EastsideSocio-spatial contextSocial structural forcesConcept of necropoliticsHousing environmentOverdose crisisNecropolitical logicReimagine subjectivityQualitative interviewsParticipants' narrativesTransformative potentialHousingIllicit drugsEastsidePeoplePrecarious healthCrisisVancouverOverdose deathsContextPrescription alternativesNecropoliticsReduce overdose deathsAcceptability of long-acting antiretroviral therapy among people living with HIV who use drugs in Vancouver, Canada: A qualitative study
Chayama K, Ng C, Brohman I, Mansoor M, Small W, Philbin M, Collins A, McNeil R. Acceptability of long-acting antiretroviral therapy among people living with HIV who use drugs in Vancouver, Canada: A qualitative study. PLOS ONE 2025, 20: e0319010. PMID: 40019916, PMCID: PMC11870339, DOI: 10.1371/journal.pone.0319010.Peer-Reviewed Original ResearchMeSH Keywords and ConceptsConceptsAdherence to antiretroviral therapyLong-acting antiretroviral therapyLA-ARTAntiretroviral therapySuboptimal adherence to antiretroviral therapyAdherence barriersProspective cohort studySuboptimal ART adherenceAdverse side effectsPill burdenTreatment optionsSubstance useCohort studyART adherenceTreatment advancesSide effectsTreatment changesPLHIVTreatment approachesTherapyCredible sources of informationPopulation-level benefitsDrugHIVSocial-structural inequitiesS20 Examining the Role of Emergency Housing in Safer Supply Prescription Access in British Columbia Amidst Overlapping COVID-19 and Overdose Public Health Emergencies: A Qualitative Study
Parusel S, Fleming T, Mayer S, Mansoor M, Ivsins A, Boyd J, McNeil R. S20 Examining the Role of Emergency Housing in Safer Supply Prescription Access in British Columbia Amidst Overlapping COVID-19 and Overdose Public Health Emergencies: A Qualitative Study. Drug And Alcohol Dependence 2025, 267: 111440. DOI: 10.1016/j.drugalcdep.2024.111440.Peer-Reviewed Original ResearchW124 Implications for Overdose Response Among People Experiencing Homelessness who Co-Use Fentanyl and Stimulants in San Francisco and New York: Findings From Phase 1 of a Longitudinal Study
Knight K, Koenders S, Augustine D, Dhatt Z, Jacques T, Taylor G, McNeil R. W124 Implications for Overdose Response Among People Experiencing Homelessness who Co-Use Fentanyl and Stimulants in San Francisco and New York: Findings From Phase 1 of a Longitudinal Study. Drug And Alcohol Dependence 2025, 267: 112066. DOI: 10.1016/j.drugalcdep.2024.112066.Peer-Reviewed Original ResearchM100 Impacts of an Innovative Injectable Diacetylmorphine Treatment Program Complemented With Fentanyl Patches on Overdose Vulnerability: A Qualitative Study in Vancouver, Canada
McNeil R, Ivsins A, Ng C, Chayama K, Mayer S. M100 Impacts of an Innovative Injectable Diacetylmorphine Treatment Program Complemented With Fentanyl Patches on Overdose Vulnerability: A Qualitative Study in Vancouver, Canada. Drug And Alcohol Dependence 2025, 267: 111694. DOI: 10.1016/j.drugalcdep.2024.111694.Peer-Reviewed Original ResearchS15 Barriers and Facilitators to Injectable Opioid Agonist Treatment Engagement: A Qualitative Study of Patient Experiences in Vancouver, Canada
Mayer S, Fairbairn N, Fowler A, McNeil R. S15 Barriers and Facilitators to Injectable Opioid Agonist Treatment Engagement: A Qualitative Study of Patient Experiences in Vancouver, Canada. Drug And Alcohol Dependence 2025, 267: 111435. DOI: 10.1016/j.drugalcdep.2024.111435.Peer-Reviewed Original Research
2024
‘It just doesn't stop’: Perspectives of women who use drugs on increased overdoses during the COVID‐19 pandemic
Speed K, McNeil R, Hayashi K, Maher L, Boyd J. ‘It just doesn't stop’: Perspectives of women who use drugs on increased overdoses during the COVID‐19 pandemic. Drug And Alcohol Review 2024, 44: 602-612. PMID: 39703005, PMCID: PMC11813672, DOI: 10.1111/dar.13996.Peer-Reviewed Original ResearchMeSH Keywords and ConceptsConceptsGender violenceSocio-economic marginalisationOverdose crisisDrug supplyPerspective of womenViolence frameworkExacerbate harmStructural driversSemi-structured interviewsViolenceCOVID-19 pandemicRisk of overdoseSocial distancing guidelinesReduced opportunitiesCrisisCOVID-19Health crisisOverdose riskWomenDistancing guidelinesIndividualised approachPublic health guidanceIncreasing overdoseHarmCOVID-19 environment“They talk about it like it's an overdose crisis when in fact it's basically genocide”: The experiences of Indigenous peoples who use illicit drugs in Vancouver's Downtown Eastside neighbourhood
Lavalley J, Steinhauer L, Bundy D, Kerr T, McNeil R. “They talk about it like it's an overdose crisis when in fact it's basically genocide”: The experiences of Indigenous peoples who use illicit drugs in Vancouver's Downtown Eastside neighbourhood. International Journal Of Drug Policy 2024, 134: 104631. PMID: 39500223, DOI: 10.1016/j.drugpo.2024.104631.Peer-Reviewed Original ResearchConceptsDowntown EastsideIndigenous peoplesRacial capitalismSettler colonialismVancouver’s Downtown Eastside neighbourhoodContext of settler colonialismExperiences of Indigenous peoplesVancouver's Downtown EastsideHarm reduction approachesLow-income neighborhoodsCanada's Downtown EastsideDrug-related harmIllicit drugsHarm reduction programsPolicing practicesSocial violenceIndigenous representationStructural racismIndigenous waysDrug poisoning deathsPervasive distrustPoisoning crisisCultural integrationQualitative interviewsMaterial conditions
News
News
- July 26, 2024
Statement from Ryan McNeil and Gina Bonilla
- April 30, 2023Source: The Washington Post
Artist’s death spotlights peril posed by xylazine-fentanyl mix
- April 20, 2023Source: The Washington Post
Experts slam plan to sell overdose antidote Narcan at about $50 a kit
- October 31, 2022
Several Yale Program in Addiction Medicine Faculty Members Receive New NIH HEAL Initiative Awards