
Putting Patients and Communities First
CATC provides best-in-class addiction care to our patients, offering a judgment-free, compassionate space for people to heal.
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Serving Indigenous Communities Better
We're committed to increasing our capacity to deliver accessible, culturally-appropriate treatment for addictions.
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Staying Committed Through COVID-19 Pandemic
We are taking necessary measures to keep our staff, patients, and communities safe during this time.
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Treatment Centre Hours of Operation
View the location convenient for you and the hours of operation.
View Our Locations and HoursOur Addiction Treatments and Programs
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Locations
CATC has over 75 convenient treatment centres throughout Ontario, New Brunswick and British Columbia to help you or your family member get started on their recovery journey.
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Methadone Treatment
Methadone (usually in liquid form) is a full opioid agonist that provides relief from withdrawal symptoms and cravings. Because it has no ceiling effect, it is useful for patients who are dependent on high doses of opioid and/or strong opioids like fentanyl.
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Suboxone® Treatment
Buprenorphine/Naloxone (tablet form, brand name Suboxone®) is a partial opioid agonist that helps relieve withdrawal symptoms. Because it has a ceiling effect, it offers a good safety profile.
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Hepatitis C Treatment
Hepatitis C, a blood-borne virus that affects the liver, can be cured. New treatment options are as simple as taking one pill a day for 8-12 weeks with little or no side effects.
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Inpatient Programs
Our 4 intensive inpatient addiction treatment centres (often called “residential treatment centres”) offer a safe healing environment, giving you all of the skills and specialized care you need to reach your recovery goals. With a full suite of client supports, including lifelong aftercare, sober living coaching, therapy for underlying mental health issues and medically-supervised detox, our compassionate teams are here to help when you or your loved one are ready to start your journey in recovery from substance use and addiction.
Inpatient Recovery Programs
Locations
CATC has over 75 convenient treatment centres throughout Ontario, New Brunswick and British Columbia to help you or your family member get started on their recovery journey.
Methadone Treatment
Methadone (usually in liquid form) is a full opioid agonist that provides relief from withdrawal symptoms and cravings. Because it has no ceiling effect, it is useful for patients who are dependent on high doses of opioid and/or strong opioids like fentanyl.
Suboxone® Treatment
Buprenorphine/Naloxone (tablet form, brand name Suboxone®) is a partial opioid agonist that helps relieve withdrawal symptoms. Because it has a ceiling effect, it offers a good safety profile.
Hepatitis C Treatment
Hepatitis C, a blood-borne virus that affects the liver, can be cured. New treatment options are as simple as taking one pill a day for 8-12 weeks with little or no side effects.
Inpatient Programs
Our 4 intensive inpatient addiction treatment centres (often called “residential treatment centres”) offer a safe healing environment, giving you all of the skills and specialized care you need to reach your recovery goals. With a full suite of client supports, including lifelong aftercare, sober living coaching, therapy for underlying mental health issues and medically-supervised detox, our compassionate teams are here to help when you or your loved one are ready to start your journey in recovery from substance use and addiction.
Our Addiction Treatment Centre Locations
Each of our Addiction Treatment Centres is conveniently located, clean, and welcoming to all. We offer both Methadone and Buprenorphine/Naloxone (Suboxone®) medication-assisted therapy, as well as Hepatitis C diagnostic and treatment services. Patients will have access to harm reduction services like Needle Exchange Programs and Naloxone kits. Where possible, we have partnered with community agencies to provide additional services, including counseling, housing support, job banks, tax filing assistance, primary care, etc.
View All LocationsCanadian Addiction Treatment Centres CARE

COMPASSIONATE

ACCESSIBLE

RESPECTFUL

EXPERT
CATC’s multidisciplinary team of medical professionals provide a range of harm reduction and supportive treatment strategies for those struggling with addiction to prescription pain medications and other opioids (i.e. fentanyl, heroin).
Our Comprehensive Treatment Programs include the use of Methadone or Buprenorphine/Naloxone (Suboxone®) to help patients manage withdrawal and cravings that so often lead to relapse. Our patient-specific treatment plans address not only the physical dependency to opioids, but also the unique mental, emotional and social toll addiction typically takes on our patients.
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Our Patients Say It Best
Clinic Staff are the nicest, most efficient and caring I have ever encountered.
– Client from Pembroke
The staff here is extremely supportive and friendly. Couldn’t ask for better service and compassion.
– Client from Windsor
This team/staff have been more than helpful. They have helped me with removing the shamefulness of entering this treatment. It’s never easy to admit you have an addiction problem, and they made me feel normal. Thank you so much to the OATC staff.
– Client from Huntsville
I would not be alive and living as a good person if it wasn’t for this place. I am very grateful.
– Client from Change Health Care
Amazing staff, very welcoming, understanding, and empathetic. They adjust accordingly to any changes in my care that is required. By far the best medical addiction staff that I have had the pleasure to be treated by. Thank you!
– Client from Queen Street Treatment Clinic
This program saved my life and it makes me a better person with every day it get up; I thank this program from the bottom of my heart; I would refer any person to come and at least try it.
– Client from Vanier
Staff is amazing,very helpful, knowledgeable, and friendly, they give you the tools to succeed and you feel the support that you need in order to start living life again. I would recommend the OATC on Main and Tisdale to anyone looking for help with addictions.
– Jon R. from Hamilton
The staff are really supportive and seem to genuinely care about their patients. They maintain consistent unconditional positive regard and the doctors are patient, kind and knowledgeable.
– Mika J. from Hamilton
The team at OATC Keswick are amazing. They really do go above and beyond to ensure you get the best treatment. They treat you with the utmost respect and absolutely no judgment. The doctor is also amazing.
– Kenneth W. from Keswick
I’ve been going here for a few years now. The people here are great and if it wasn’t for this place I would be dead. This place really helps.
– Steve S. from Brampton
I’ve dealt with two clinics before this one & this blew my expectations out of the water. The hours are super convenient… the staff are kind and non-judgemental. The doctor I have is thorough in explaining things and very nice. Intake was very thorough which I liked & haven’t experienced previously. I’ll never recommended anywhere but here. If you’re ready to make the changes needed, this is the best place to go.
– Alexis K. from Oakville
I am currently an appointed guardian of a patient who visits the OATC for the last month. This is my first experience regarding addiction treatment. The staff has made me and more importantly the patient feel very welcome, warm and not so clinical amd cold. Thank you for the job and the service you provide our community.
– Client from Oakville
At the age of 40, I found myself divorced and addicted. With the help of doctors, nurses and staff at CATC, I got my life back.
– Client from Ontario
I’ve been dealing with Aylmer St. Pharmacy for a few years. Very excellent people and help… from all the workers. Very friendly workers. Thanks for caring for me and all the customers.
– Client from Peterborough, ON
I am writing about my experience with Park Ave pharmacy. I recommend the pharmacy and give it 5 stars. I have dealt with lots of other pharmacies and have never felt comfortable. Whenever I had questions I felt like I was an inconvenience, but with this pharmacy, I’ve had all excellent experiences with all the staff. Jessica and Shawna have gone above and beyond to help me find answers and have always returned calls and emails quickly. I’ve had many health issues or concerns about methadone and I always got excellent help and advice. The staff treats their customers as if they are family and not once have I had a bad experience or felt uncomfortable speaking to anyone there. I don’t just get my methadone, but all of my (and my family’s) prescriptions here.
– Client from Kitchener
They say that “time heals all wounds” but what most fail to realize is that you need a spectacular group of special individuals, who are caring, friendly and nurturing, as well, to help and guide you, supporting your each and every step, supporting your recovery, at YOUR PACE…… I couldn’t have successfully gotten off the fentanyl, opioids, and painkillers, without the great loving care ALL OF YOU have provided to me, to give me the positive drive and push to get as clean as I’m becoming, making me feel more happiness and a noticeably higher level of self-worth and confidence.
– Client from Windsor, ON
I took a chance with the methadone program over a decade ago. I can honestly say taking that step through the door has truly allowed me to get my life back. It made me a responsible member of society. It made me be able to have a great job and I got my kids back home where they belonged after many failed attempts to get sober. I can honestly say joining the methadone program finally gave me my fresh start. I will always be grateful they brought an OATC clinic to my small town of Pembroke.
– Client from Pembroke, ON

CATC provides exceptional addiction care to 19,000 patients across Canada every month. During this unprecedented COVID-19 outbreak, we are abiding by all CPSO safety guidelines and offer telehealth in some cases. Above all else, we are committed to keeping our staff, patients and communities healthy and safe.
COVID-19 Safety Information
We are dedicated to the health and safety of our patients, our team and our communities during COVID-19. We would like to thank our patients for staying committed to their recovery treatment (especially during these challenging times). We are proud of our exceptional staff, who have adapted quickly and worked tirelessly to care for our patients safely during COVID-19.
Learn MoreA Message from Our CEO
To our valued patients: These are unprecedented times. As a result of the COVID pandemic, we are being asked to make changes to our daily routines. We are ultimately being asked to help slow the spread of this virus. While the virus is unlikely to significantly impact the average, healthy person, it can have devastating health effect for the elderly or people with a weakened immune system.
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