Faculty profile
John Hanlon
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Read how they describe their research on their University of Toronto profile.
Latest papers
Risk of Heart Failure-related Events in Patients Exposed to Medical Cannabis: A Longitudinal Cohort Study.
American journal of medicine open · 2026
PAINscape-Exploring patient experiences with ketamine for chronic neuropathic pain: A qualitative study.
Canadian journal of pain = Revue canadienne de la douleur · 2026
Opioid Initiation in Older Patients with Chronic Pain Who Received Authorized Cannabis Prescription.
Substance use & misuse · 2026
Latest funding
- $294,526
Understanding the Impact of Legal Cannabis Access on Health: A Large, Prospective Cohort Study of Canadians Obtaining Medical Cannabis Authorization
CIHR · 2018 · Principal investigator
Studying the Impact of Legal Cannabis Access on Use of Opiate Prescriptions in Patients with Chronic Pain: Cross Jurisdictional Analysis
CIHR · 2018 · Co-investigator
67 publications.
Risk of Heart Failure-related Events in Patients Exposed to Medical Cannabis: A Longitudinal Cohort Study.
Dubois C, Eurich DT, Dyck JRB, Hyshka E, Hanlon JG, Zongo A
PAINscape-Exploring patient experiences with ketamine for chronic neuropathic pain: A qualitative study.
Parakh N, Lessor D, Dang K, Ritvo P, Wijeysundera DN, Tucci V, Leda M, Lu M, Mattina G, Pazmino-Canizares J, Thomas Z, Nayar R, Hanlon JG, Pereira SM, Ladha KS, Clarke H, Rizvi SJ, Pritlove C, Goel A
Opioid Initiation in Older Patients with Chronic Pain Who Received Authorized Cannabis Prescription.
Fontaine E, El-Mourad J, Dubois C, Eurich DT, Dyck JRB, Hanlon JG, Zongo A
PAINscape—Exploring patient experiences with ketamine for chronic neuropathic pain: A qualitative study
Nandana D. Parakh, Danielle Lessor, Kevin Dang, Paul Ritvo, Duminda N. Wijeysundera, Victoria Tucci, Mariela Leda, Mindy Lu, Gabriella Mattina, Janneth Pazmino-Canizares, Zaaria Thomas, R. Nayar, John G. Hanlon, Sérgio M. Pereira, Karim S. Ladha, Hance A. Clarke, Sakina J. Rizvi, Cheryl Pritlove, Akash Goel
PAINscape—Exploring patient experiences with ketamine for chronic neuropathic pain: A qualitative study
Nandana D. Parakh, Danielle Lessor, Kevin Dang, Paul Ritvo, Duminda N. Wijeysundera, Victoria Tucci, Mariela Leda, Mindy Lu, Gabriella Mattina, Janneth Pazmino-Canizares, Zaaria Thomas, R. Nayar, John G. Hanlon, Sérgio M. Pereira, Karim S. Ladha, Hance A. Clarke, Sakina J. Rizvi, Cheryl Pritlove, Akash Goel
Concomitant use of medical cannabis and drugs associated with risks of interaction in older patients: a longitudinal cohort study.
Bérété ZC, Sebgo AA, Eurich DT, Dubois C, Dyck JR, Hanlon JG, Zongo A
Predictors of Perioperative Opioid Use in Hysterectomy Patients
Azra Shivji, Samantha Benlolo, John G. Hanlon, Lindsay Shirreff, H Husslein, Eliane M. Shore
EP6.26 Temporal Utilization of Supervised Physiotherapy Visits Following Hip Arthroscopy (HA)
Eric Weidart, Connor L. Luck, John G. Hanlon, Ali Ghaisarnia, Keelan R. Enseki, Michael P. McClincy, Ashley E. Disantis
Spinal cord stimulation for chronic pain: a retrospective cohort study of patients from a Canadian tertiary centre.
Chan HA, Kapoor B, Rai Y, Karatu F, Jalilian F, Hanlon J, Bhatia A, Sussman D, Diep C, Ladha KS, Goel A
Risk of Heart Failure in Patients Exposed to Medical Cannabis: A Longitudinal Cohort
Cerina Lee, Eurich T. Dean, Jason R.B. Dyck, Elaine Hyshka, John G. Hanlon, Arsène Zongo
Understanding the Impact of Legal Cannabis Access on Health: A Large, Prospective Cohort Study of Canadians Obtaining Medical Cannabis Authorization
Principal investigators: Eurich, Dean; Hanlon, John G; Hyshka, Elaine
Keywords: Adverse Effects; Cannabis; Health Outcomes; Health Utilization; Morbidty; Mortality
Studying the Impact of Legal Cannabis Access on Use of Opiate Prescriptions in Patients with Chronic Pain: Cross Jurisdictional Analysis
Principal investigators: Eurich, Dean
Keywords: Cannabis; Health Outcomes; Hospitalizations
From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.
Frequent collaborators
- Michael McGillion and Sandra Carroll: 57 shared papers
- Hance Clarke and Karim Ladha: 54 shared papers
- Viren Naik and Dylan Bould: 31 shared papers
- Jason Dyck and Dean Eurich: 29 shared papers
- Jason Dyck and John Hanlon: 23 shared papers
- Dean Eurich and John Hanlon: 22 shared papers
- Scott Klarenbach and Lawrence Richer: 22 shared papers
- Karim Ladha and Akash Goel: 22 shared papers
- Michael McGillion and Janice Victor: 21 shared papers
- Dean Eurich and Arsène Zongo: 20 shared papers
- Elaine Hyshka and John Hanlon: 20 shared papers
- Jason Dyck and Elaine Hyshka: 19 shared papers
- Dean Eurich and Elaine Hyshka: 18 shared papers
- Hance Clarke and Akash Goel: 15 shared papers
- Sandra Carroll and Janice Victor: 12 shared papers
- Jason Dyck and Arsène Zongo: 12 shared papers
- Arsène Zongo and John Hanlon: 12 shared papers
- Hance Clarke and Anuj Bhatia: 11 shared papers
- Hance Clarke and John Hanlon: 11 shared papers
- Harsha Shanthanna and Michael McGillion: 9 shared papers
- Hance Clarke and Tania Di Renna: 9 shared papers
- Harsha Shanthanna and Karim Ladha: 8 shared papers
- Harsha Shanthanna and Akash Goel: 8 shared papers
- Bruno Borges and Viren Naik: 8 shared papers
- Dean Eurich and Scott Klarenbach: 7 shared papers
- Scott Klarenbach and Elaine Hyshka: 7 shared papers
- Scott Klarenbach and John Hanlon: 7 shared papers
- Michael McGillion and Robert McKelvie: 6 shared papers
- Karim Ladha and Tania Di Renna: 6 shared papers
- Karim Ladha and John Hanlon: 6 shared papers
- Akash Goel and John Hanlon: 6 shared papers
- Robert McKelvie and Sandra Carroll: 5 shared papers
- Robert McKelvie and Janice Victor: 5 shared papers
- Bruno Borges and Dylan Bould: 5 shared papers
- Hance Clarke and Cheryl Pritlove: 5 shared papers
- Karim Ladha and Anuj Bhatia: 5 shared papers
- Viren Naik and John Hanlon: 5 shared papers
- Michael McGillion and John Hanlon: 4 shared papers
- Bruno Borges and John Hanlon: 4 shared papers
- Sakina Rizvi and Cheryl Pritlove: 4 shared papers
- Tania Di Renna and Anuj Bhatia: 4 shared papers
- Cheryl Pritlove and Akash Goel: 4 shared papers
- Akash Goel and Wiplove Lamba: 4 shared papers
- Harsha Shanthanna and Scott Duggan: 3 shared papers
- Harsha Shanthanna and Wiplove Lamba: 3 shared papers
- Harsha Shanthanna and John Hanlon: 3 shared papers
- Robert McKelvie and John Hanlon: 3 shared papers
- Sandra Carroll and John Hanlon: 3 shared papers
- Gurmit Singh and John Hanlon: 3 shared papers
- Dean Eurich and Lawrence Richer: 3 shared papers
- Hance Clarke and Sakina Rizvi: 3 shared papers
- Hance Clarke and Scott Duggan: 3 shared papers
- Hance Clarke and Wiplove Lamba: 3 shared papers
- Elaine Hyshka and Lawrence Richer: 3 shared papers
- Sakina Rizvi and John Hanlon: 3 shared papers
- Karim Ladha and Scott Duggan: 3 shared papers
- Tania Di Renna and John Hanlon: 3 shared papers
- Cheryl Pritlove and John Hanlon: 3 shared papers
- Scott Duggan and John Hanlon: 3 shared papers
- Lawrence Richer and John Hanlon: 3 shared papers
- Dylan Bould and John Hanlon: 3 shared papers
- Janice Victor and John Hanlon: 3 shared papers
- Wiplove Lamba and John Hanlon: 3 shared papers
- Anuj Bhatia and John Hanlon: 2 shared papers
- Harsha Shanthanna and Gurmit Singh: 1 shared paper
- Gurmit Singh and Jason Dyck: 1 shared paper
- Department of Anesthesiology and Pain Medicine
- School of Public Health
- Department of Anesthesia
- Nursing
- Department of Psychiatry
- Pediatrics Dept
- Pharmacie
- Other
Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.
Jason Dyck
Pediatrics Dept
23 shared papers, latest 2026
Dean Eurich
School of Public Health
22 shared papers, latest 2026
Elaine Hyshka
School of Public Health
20 shared papers, latest 2026
Arsène Zongo
Pharmacie
12 shared papers, latest 2026
Hance Clarke
Department of Anesthesiology and Pain Medicine
11 shared papers, latest 2026
Scott Klarenbach
Medicine Dept
7 shared papers, latest 2024
Karim Ladha
Department of Anesthesiology and Pain Medicine
6 shared papers, latest 2025
Akash Goel
Department of Anesthesiology and Pain Medicine
6 shared papers, latest 2026
Viren Naik
Faculty
5 shared papers, latest 2011
Michael McGillion
Nursing
4 shared papers, latest 2019
Bruno Borges
Department of Anesthesia
4 shared papers, latest 2011
Paul Ritvo
Health Policy and Management
3 shared papers, latest 2026
Robert McKelvie
Department of Medicine
3 shared papers, latest 2015
Andrew Rainbow
Department of Biology
3 shared papers, latest 2002
Sandra Carroll
Nursing
3 shared papers, latest 2015
Gurmit Singh
Department of Pathology and Molecular Medicine
3 shared papers, latest 2002
Harsha Shanthanna
Department of Anesthesia
3 shared papers, latest 2019
Sakina Rizvi
Department of Psychiatry
3 shared papers, latest 2026
Tania Di Renna
Department of Anesthesiology and Pain Medicine
3 shared papers, latest 2019
Joseph Victor
Faculty
3 shared papers, latest 2015
Rita Katznelson
Department of Anesthesiology and Pain Medicine
2 shared papers, latest 2016
Howard Meng
Department of Anesthesiology and Pain Medicine
2 shared papers, latest 2020
Lindsay Shirreff
Department of Obstetrics & Gynaecology
2 shared papers, latest 2025
Farhang Jalilian
Department of Anesthesiology and Pain Medicine
1 shared papers, latest 2025
Azra Shivji
Department of Obstetrics & Gynaecology
1 shared papers, latest 2025
Marjorie Johnson
Anatomy and Cell Biology
1 shared papers, latest 2013
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Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.