Faculty profile

Roy Purssell

ResearcherEmergency MedicineUniversity of British Columbia

This profile is built from public research funding records (CIHR, NSERC and SSHRC) and PubMed. We have not imported them from a University of British Columbia directory, so their courses and email address may be missing. Find their university profile.

Roy Purssell

Researcher

Emergency Medicine

Health Sciences

University of British Columbia

Vancouver, British Columbia, Canada

Supervision signals

Has led research grants, which requires an independent research appointment. Ask their department whether they supervise graduate students.
3 publications in the last five years, latest in 2026.
Senior (last) author on 1 recent paper, a sign of leading a research group.
Principal investigator on 1 research grant (1 CIHR), most recently in 2017.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

Collaborators

Grants

Publications by year

Counts cover the publications linked to this profile. Citations and the h-index appear when the source records them.

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Signals and details

Research

Adminstration Fentanyl Knowledge Synthesis Naloxone Opioid Opioid Toxicity Resuscitation Systematic Review

Latest papers

Impact of health policies on opioid tapering and discontinuation among patients receiving long-term opioid therapy for chronic noncancer pain.
The International journal on drug policy · 2026
Out-of-hospital management of unresponsive, apneic, witnessed opioid overdoses: a case series from a supervised consumption site.
CJEM · 2022 · senior author
Association Between Prescription Opioid Therapy for Noncancer Pain and Hepatitis C Virus Seroconversion.
JAMA network open · 2022

All 25 publications

Latest funding

The Toxic Drug Study: Clinical and toxicological profiles of people with unregulated drug poisoning.
CIHR · 2025 · Co-investigator
$1,602,675
Preventing Opioid Deaths due to COVID Related Increase in Smoking Illicit Substances (Preventing OD CRISIS)
CIHR · 2020 · Co-investigator
$200,000
Opioid Overdose-Related Cardiac Arrest: What are the Best Interventions?
CIHR · 2020 · Co-investigator
$283,051

All 8 grants and awards

25 publications.

Impact of health policies on opioid tapering and discontinuation among patients receiving long-term opioid therapy for chronic noncancer pain.

Morrow RL, Buxton JA, Purssell R, Moe J, Irvine M, Janjua NZ

The International journal on drug policy2026

DOI: 10.1016/j.drugpo.2026.105231 PMID: 41833239

Out-of-hospital management of unresponsive, apneic, witnessed opioid overdoses: a case series from a supervised consumption site.

Rowe A, Chang A, Lostchuck E, Lin K, Scheuermeyer F, McCann V, Buxton J, Moe J, Cho R, Clerc P, McSweeney C, Jiang A, Purssell R

CJEM2022Senior author

DOI: 10.1007/s43678-022-00326-9 PMID: 35670914

Association Between Prescription Opioid Therapy for Noncancer Pain and Hepatitis C Virus Seroconversion.

Wilton J, Wong S, Purssell R, Abdia Y, Chong M, Karim ME, MacInnes A, Bartlett SR, Balshaw RF, Gomes T, Yu A, Alvarez M, Dart RC, Krajden M, Buxton JA, Janjua NZ

JAMA network open2022

DOI: 10.1001/jamanetworkopen.2021.43050 PMID: 35019983

Prescription opioid treatment for non-cancer pain and initiation of injection drug use: large retrospective cohort study.

Wilton J, Abdia Y, Chong M, Karim ME, Wong S, MacInnes A, Balshaw R, Zhao B, Gomes T, Yu A, Alvarez M, Dart RC, Krajden M, Buxton JA, Janjua NZ, Purssell R

BMJ (Clinical research ed.)2021Senior author

DOI: 10.1136/bmj-2021-066965 PMID: 34794949

Adverse events related to bystander naloxone administration in cases of suspected opioid overdose in British Columbia: An observational study.

Moustaqim-Barrette A, Papamihali K, Williams S, Ferguson M, Moe J, Purssell R, Buxton JA

PloS one2021

DOI: 10.1371/journal.pone.0259126 PMID: 34714854

Socioeconomic factors and substances involved in poisoning-related emergency department visits in British Columbia, Canada.

Pawer S, Rajabali F, Zheng A, Pike I, Purssell R, Zargaran A, Babul S

Health promotion and chronic disease prevention in Canada : research, policy and practice2021

DOI: 10.24095/hpcdp.41.7/8.02 PMID: 34427419

Analyses of Child and Youth Self-Poisoning Hospitalizations by Substance and Socioeconomic Status.

Pawer S, Rajabali F, Zheng A, Smith J, Purssell R, Pike I

International journal of environmental research and public health2021

DOI: 10.3390/ijerph18137003 PMID: 34208955

Crystal methamphetamine use in British Columbia, Canada: A cross-sectional study of people who access harm reduction services.

Papamihali K, Collins D, Karamouzian M, Purssell R, Graham B, Buxton J

PloS one2021

DOI: 10.1371/journal.pone.0252090 PMID: 34038452

Cohort profile: development and characteristics of a retrospective cohort of individuals dispensed prescription opioids for non-cancer pain in British Columbia, Canada.

Wilton J, Chong M, Abdia Y, Purssell R, MacInnes A, Gomes T, Dart RC, Balshaw RF, Otterstatter M, Wong S, Yu A, Alvarez M, Janjua NZ, Buxton JA

BMJ open2021

DOI: 10.1136/bmjopen-2020-043586 PMID: 33849849

Authors' reply to Comment on Comparison of rates of opioid withdrawal symptoms and reversal of opioid toxicity in patients treated with two naloxone dosing regimens.

Purssell R, Godwin J, Moe J, Buxton J, Kestler A, Brubacher JR

Clinical toxicology (Philadelphia, Pa.)2021First author

DOI: 10.1080/15563650.2020.1846744 PMID: 33215939

The Toxic Drug Study: Clinical and toxicological profiles of people with unregulated drug poisoning.

Co-investigatorCIHR2025Project Grant

Principal investigators: Brubacher, Jeffrey R

Keywords: Fentanyl; Opioids; Overdose; Sedatives; Stimulants; Toxicology; Unregulated Drugs

$1,602,675

Preventing Opioid Deaths due to COVID Related Increase in Smoking Illicit Substances (Preventing OD CRISIS)

Co-investigatorCIHR2020Op Gr: COVID-19 MH/SU - Developing Innovative Adaptations of Services/Delivery

Principal investigators: Moe, Jessica; Davison, Carolyn; Buxton, Jane; Salmon, Amy L; Slaunwhite, Amanda K

Keywords: Innovative Adaptations Of Services For People Smoking Drugs; Matching Access To Harm Reduction To Smoking-Specific Risks

$200,000

Opioid Overdose-Related Cardiac Arrest: What are the Best Interventions?

Co-investigatorCIHR2020Project Grant

Principal investigators: Grunau, Brian E; Buxton, Jane; Christenson, James M

Keywords: Advanced Life Support; Basic Life Support; Cardiac Arrest; Cardiopulmonary Resuscitation; Naloxone; Opioid Overdose; Opioid Use Disorder; Resuscitation

$283,051

Concurrent Use and Transition to Methamphetamine among persons at risk of OverDose (CUT Meth OD)

Co-investigatorCIHR2019Operating Grant: Methamphetamine and related psychostimulant use

Principal investigators: Buxton, Jane; Corneil, Trevor A

Keywords: Epidemiology; Harm Reduction; Methamphetamine; Polysusbtance Use; Qualitative Interviews

$100,000

Systematic Review of Naloxone Interventions in Opioid Overdoses

Principal investigatorCIHR2017Operating Grant: Opioid Crisis Knowledge Synthesis

Principal investigators: Hohl, Corinne M; Buxton, Jane; Purssell, Roy A

Keywords: Adminstration; Fentanyl; Knowledge Synthesis; Naloxone; Opioid; Opioid Toxicity; Resuscitation; Systematic Review

$110,000

Opioid Prescribing Evaluation and Research Activities (OPERA)

Co-investigatorCIHR2017Project Grant

Principal investigators: Buxton, Jane; Janjua, Naveed Z

Keywords: Drug Policy; Harm Reduction; Illegal Drug Use; Illicit Drug Use; Opioids; Overdose; Overdose Mortality; Prescribing Practices; Tapering

$520,200

Evaluation of traffic safety interventions in British Columbia.

Co-investigatorCIHR2011Operating Grant: Population Health Intervention Research

Principal investigators: Brubacher, Jeffrey R

Keywords: Enforcement; Motor Vehicle Collisions; Traffic Safety Policy

$149,868

Cannabis and Motor Vehicle Crashes: A Multicentre Culpability Study.

Co-investigatorCIHR2010Operating Grant

Principal investigators: Brubacher, Jeffrey R

Keywords: Cannabis; Motor Vehicle Crashes

$910,151

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

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Roy Purssell

Research

Latest papers

Latest funding

Impact of health policies on opioid tapering and discontinuation among patients receiving long-term opioid therapy for chronic noncancer pain.

Out-of-hospital management of unresponsive, apneic, witnessed opioid overdoses: a case series from a supervised consumption site.

Association Between Prescription Opioid Therapy for Noncancer Pain and Hepatitis C Virus Seroconversion.

Prescription opioid treatment for non-cancer pain and initiation of injection drug use: large retrospective cohort study.

Adverse events related to bystander naloxone administration in cases of suspected opioid overdose in British Columbia: An observational study.

Socioeconomic factors and substances involved in poisoning-related emergency department visits in British Columbia, Canada.

Analyses of Child and Youth Self-Poisoning Hospitalizations by Substance and Socioeconomic Status.

Crystal methamphetamine use in British Columbia, Canada: A cross-sectional study of people who access harm reduction services.

Cohort profile: development and characteristics of a retrospective cohort of individuals dispensed prescription opioids for non-cancer pain in British Columbia, Canada.

Authors' reply to Comment on Comparison of rates of opioid withdrawal symptoms and reversal of opioid toxicity in patients treated with two naloxone dosing regimens.

The Toxic Drug Study: Clinical and toxicological profiles of people with unregulated drug poisoning.

Preventing Opioid Deaths due to COVID Related Increase in Smoking Illicit Substances (Preventing OD CRISIS)

Opioid Overdose-Related Cardiac Arrest: What are the Best Interventions?

Concurrent Use and Transition to Methamphetamine among persons at risk of OverDose (CUT Meth OD)

Systematic Review of Naloxone Interventions in Opioid Overdoses

Opioid Prescribing Evaluation and Research Activities (OPERA)

Evaluation of traffic safety interventions in British Columbia.

Cannabis and Motor Vehicle Crashes: A Multicentre Culpability Study.

Frequent collaborators

Jessica Moe

Jane Buxton

Ian Pike

Mark Asbridge

Tara Gomes

Frank Scheuermeyer

Andrew Kestler

David Johnson

Mel Krajden

Jennifer Gardy

Mohammad Karamouzian

Shelina Babul

Colin Ross

Bruce Carleton