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CCENDU

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The Canadian Community Epidemiology Network on Drug Use (CCENDU) is a nation-wide network of community partners that informs Canadians about emerging drug use trends and associated issues. By coordinating community partners and assembling the information they report, CCSA helps CCENDU by communicating topics of immediate concern and by informing communities on lessons learned in response to local drug issues.

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The Canadian Community Epidemiology Network on Drug Use (CCENDU), co-ordinated by the Canadian Centre on Substance Use and Addiction (CCSA), publishes this newsletter, Substance Use Trends in Canada, to inform people living in Canada about emerging substance use issues and trends, pulling from a variety of information sources.

Each release focuses on specific, timely, relevant drug use, to create awareness and provide context on emerging trends. It features dedicated sections summarizing data, experiences and insights from CCSA’s networks, including CCENDU, the drug checking community and international networks where possible. To enhance understanding and engagement of substance use issues, the newsletter presents synthesized information in visual formats like maps, offering clear and impactful insights into the topics.

Sign up today to receive Substance Use Trends in Canada directly to your inbox!

Recent Issues

Issue 6: Recent Trends in Opioid-Related Toxicity Deaths in Canada: Examining a Potential Decrease

This issue features a regional breakdown of reports from six CCENDU sites and three drug checking services across the country. It focuses on the potential drivers of the national decrease in opioid-related toxicity deaths from 2023 to 2024, and includes high-level trends seen in early 2025. In all regions across Canada, the overall number of deaths remains very high, differences in death rates exist among communities, and some provinces and territories are seeing consistent increases or renewed increases following a period of decline. 

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Map of Canada with icon of a magnifying glass circling a data trend.

Issue 5: Atypical Opioid-Related Overdose Presentations

Publication date: May 2025

This issue features a regional breakdown of reports from four CCENDU sites and three drug checking services across the country. It focuses on the presence of atypical opioid-related overdose presentations, like jaw and muscle rigidity (stiff posturing), seizures and dyskinesia (involuntary muscle movement). It also discusses implications for first responders and emergency medical services, clinicians, people who use drugs and policy makers. Read more.

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Physician discussing treatment plan with patient.

Issue 4: Fentanyl Analogues

Publication date: March 2025

This issue features reports from four CCENDU sites and six drug checking services, alongside data from Health Canada’s Drug Analysis Service and Canadian Drug and Substance Watch, and social and traditional media, focused on the presence of fentanyl analogues in the unregulated drug supply. It shows variations across Canada in the prevalence of fluorofentanyl, methylfentanyl and carfentanil and their co-occurrence with fentanyl. It also discusses implications for first responders, healthcare workers, people who use drugs and policy makers.

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Naloxone kit

Past Issues

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Issue 3: Nonmedical Benzodiazepines

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Publication date: January 2025

This issue features reports from four CCENDU sites and eight drug checking services, alongside data from Health Canada’s Drug Analysis Service and Canadian Drug and Substance Watch, social and traditional media, and the Community Urinalysis and Self-Report Project, focused on the presence of nonmedical benzodiazepines (NMBs) in the unregulated drug supply. It shows that detection of NMBs is common across Canada but there are fluctuations over time and new NMBs emerge and replace each other often. It also discusses implications for first responders, healthcare workers, people who use drugs and policy makers.

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Issue 2: Medetomidine

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Publication date: September 2024

This issue features reports from five CCENDU sites and four drug checking services, alongside data from Health Canada’s Drug Analysis Service and social and traditional media, focused on the presence of the veterinary tranquilizer medetomidine in the unregulated drug supply. It shows the presence of medetomidine in drugs expected to be opioids, often in combination with fentanyl, its analogues and other tranquilizers, in many regions across Canada. It also discusses implications for first responders, healthcare workers, people who use drugs and policy makers. 

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Issue 1: Counterfeit Pharmaceuticals

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Publication date: July 2024

This issue features reports from five CCENDU sites and six drug checking services, alongside data from Health Canada’s Drug Analysis Service and social and traditional media, focused on counterfeit pharmaceuticals containing unexpected ingredients. It shows the presence of counterfeit Dilaudid, OxyContin, Supeudol, Percocet, and Xanax, containing fentanyl, fentanyl analogues, nitazenes and nonmedical benzodiazepines, across Canada. 

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Canadian Community Epidemiology Network on Drug Use Network Coordinators

Created in 1995, the Canadian Community Epidemiology Network on Drug Use draws its members from organizations in the public health, enforcement, treatment and hospital sectors that work in the areas of substance use surveillance, policy and planning, or otherwise directly serve local, high-risk populations.

Contact ccendu@ccsa.ca to connect with a regional network coordinator in your area.

Region

Primary contact

Organization

British ColumbiaBrooke KinniburgBC Centre for Disease Control
ManitobaJackie LemaireAddictions Foundation of Manitoba
Ontario (Thunder Bay)Rilee WillianenThunder Bay Drug Strategy
Ontario (Toronto)Keerthana ElankeeranToronto Public Health
QuebecKarine MartelNational Institute of Public Health Quebec
Nova ScotiaPatryk SimonNova Scotia Health Authority
Newfoundland and LabradorWayne BishopEastern Health Newfoundland and Labrador
National Co-ordinationDoris PayerCanadian Centre on Substance Use and Addiction
National Co-ordinationKate StoysichCanadian Centre on Substance Use and Addiction

 

Publication Hub Sections

Past Alerts and Bulletins

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CCENDU 2022 Stimulants Update
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CCENDU Bulletin: An Update on Stimulant Use and Related Harms in Canada and the United States

December 15, 2022

This bulletin summarizes the most recent updates on stimulant use and related harms in Canada...

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Xylazine (CCENDU Drug Alert)
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Xylazine (CCENDU Drug Alert)

July 5, 2022

Summarizes the increased risk of accidental overdose due to xylazine in Canada’s unregulated drug supply. Xylazine is a non-opioid pain reliever developed as a sedative and...

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Nitazenes (CCENDU Drug Alert)
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Nitazenes (CCENDU Drug Alert)

March 18, 2022

This alert summarizes the increased risk of accidental overdose due to nitazene compounds being identified in Canada’s unregulated drug supply. Nitazene compounds are...

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Risks and Harms Associated with the Nonmedical Use of Benzodiazepines in the Unregulated Drug Supply in Canada  (CCENDU Bulletin)
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Risks and Harms Associated with the Nonmedical Use of Benzodiazepines in the Unregulated Drug Supply in Canada (CCENDU Bulletin)

December 8, 2021

This bulletin summarizes the risks and harms associated with nonmedical benzodiazepines...

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Changes Related to COVID-19 in the Illegal Drug Supply and Access to Services, and Resulting Health Harms (CCENDU Alert)
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Changes Related to COVID-19 in the Illegal Drug Supply and Access to Services, and Resulting Health Harms (CCENDU Alert)

May 21, 2020

Summarizes preliminary information about the impact of COVID-19 on the illegal drug supply, the...

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Download the PDF version
Report Summary

Adulterants, Contaminants and Co-occurring Substances in Drugs on the Illegal Market in Canada (CCENDU Bulletin)

April 7, 2020

Provides a snapshot of the contents of drugs on the illegal market in Canada using 2018–2019...

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CCENDU Bulletin: Changes in Stimulant Use and Related Harms: Focus on Methamphetamine and Cocaine
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Changes in Stimulant Use and Related Harms: Focus on Methamphetamine and Cocaine (CCENDU Bulletin)

May 1, 2019
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Drug-related Harms at Canadian Music Festivals, June to August 2014 (CCENDU Bulletin)
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Drug-related Harms at Canadian Music Festivals, June to August 2014 (CCENDU Bulletin)

December 31, 2014

Summarizes possible drug-related harms that occurred at Canadian music festivals between June...

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Calling 911 in Drug Poisoning Situations (CCENDU Bulletin)
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Calling 911 in Drug Poisoning Situations (CCENDU Bulletin)

April 18, 2017

Summarizes Canadian rates of calling 9-1-1 in drug poisoning situations, which greatly impacts...

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Novel Synthetic Opioids in Counterfeit Pharmaceuticals and Other Illicit Street Drugs (CCENDU Bulletin)
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Novel Synthetic Opioids in Counterfeit Pharmaceuticals and Other Illicit Street Drugs (CCENDU Bulletin)

December 31, 2016

Summarizes information on novel synthetic opioids that can appear in counterfeit pharmaceuticals...

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The Availability of Take-Home Naloxone in Canada (CCENDU Bulletin)
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The Availability of Take-Home Naloxone in Canada (CCENDU Bulletin)

December 1, 2016

Describes the availability of take-home naloxone programs in Canada and the steps required to...

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Deaths Involving Fentanyl in Canada, 2009–2014 (CCENDU Bulletin)
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Deaths Involving Fentanyl in Canada, 2009–2014 (CCENDU Bulletin)

May 7, 2015
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Fentanyl-related Overdoses (CCENDU Drug Alert)
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Fentanyl-related Overdoses (CCENDU Drug Alert)

May 8, 2015
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Synthetic Cannabinoids in Canada (CCENDU Bulletin)
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Synthetic Cannabinoids in Canada (CCENDU Bulletin)

December 31, 2014
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Increasing Availability of Counterfeit Oxycodone Tablets Containing Fentanyl (CCENDU Drug Alert)
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Increasing Availability of Counterfeit Oxycodone Tablets Containing Fentanyl (CCENDU Drug Alert)

December 31, 2014

Summarizes information on the availability of counterfeit oxycodone tablets containing fentanyl,...

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No Confirmed Reports of Desomorphine (“Krocodil”/“Crocodile”) in Canada (CCENDU Bulletin)
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No Confirmed Reports of Desomorphine (“Krocodil”/“Crocodile”) in Canada (CCENDU Bulletin)

December 31, 2013

Summarizes confirmed and unconfirmed reports about the presence of desomorphine (also known as...

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 Illicit Fentanyl (CCENDU Drug Alert)
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Illicit Fentanyl (CCENDU Drug Alert)

December 31, 2013

Summarizes information on the potential for serious adverse health consequences from using illicit fentanyl. The alert notes that illicit fentanyl produced in clandestine labs...

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Misuse of Opioids in Canadian Communities (CCENDU Bulletin)
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Misuse of Opioids in Canadian Communities (CCENDU Bulletin)

December 31, 2013

Provides information on the misuse of opioids in Canadian communities. This bulletin defines...

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CCENDU Drug Alert: "Bath Salts" (June 5, 2012)
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CCENDU Drug Alert: "Bath Salts" (June 5, 2012)

May 7, 2012

Summarizes information, including concerns and legal status, on a number of synthetic amphetamine-type stimulants that go under the name “bath salts.” The alerts notes that...

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Contact an Expert

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Get to know our experts at CCSA. Whether it is alcohol, cannabis, stigma, opioids, or any another topic related to substance use and addiction, our team of professionals is available to provide their knowledge expertise. Browse our staff profiles to find the right expert to meet your specific needs.

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Keep informed with Addiction News Daily and the CCENDU newsletter, alerts, and bulletins

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CCSA is pleased to offer the opportunity to sign up to receive news and publications on substance use trends, helping to reduce harm by supporting evidence-informed decisions.
Publication Hub Sections

Past Issues

Addiction News Daily

CCENDU Newsletter Issue 5: Atypical Opioid-Related Overdose Presentations

June 5, 2025