• AA
  • +
  • Offering over 50 centres to serve you. Serving all of Ontario with the country's largest network of methadone clinics.

    We continue to accept new patients   Same day appointments are available.

    About Ontario Addiction Treatment Centres

    The Ontario Addiction Treatment Centres (OATC) were founded in 1995. At that time, treatment for opioid agonist therapy, utilizing methadone, was extremely under-serviced and those seeking treatment often were forced to travel hundreds of kilometers to seek care. Today, OATC services over fifty communities throughout Ontario, treating over ten thousand patients daily. Our staff is highly dedicated to ensuring optimal care and great effort is made toward encouraging long term sobriety from all illicit substances.

    Read More

    OATC Colour Schedule

    Monday March 27, 2017

    • Blue
    • Orange

    Tuesday March 28, 2017

    • None

    Wednesday March 29, 2017

    • Green
    • Red

    Thursday March 30, 2017

    • None

    Friday March 31, 2017

    • Yellow

    Saturday April 1, 2017

    • Green

    Sunday April 2, 2017

    • Red
    • Orange

    Monday April 3, 2017

    • None

    Tuesday April 4, 2017

    • None

    Wednesday April 5, 2017

    • None

    Thursday April 6, 2017

    • Purple
    • Black

    Friday April 7, 2017

    • None

    Saturday April 8, 2017

    • None

    Sunday April 9, 2017

    • White

    Monday April 10, 2017

    • None

    Tuesday April 11, 2017

    • Blue

    Wednesday April 12, 2017

    • None

    Thursday April 13, 2017

    • Yellow

    Friday April 14, 2017

    • Green

    Saturday April 15, 2017

    • Orange

    Sunday April 16, 2017

    • White

    Monday April 17, 2017

    • Red

    Tuesday April 18, 2017

    • None

    Wednesday April 19, 2017

    • None

    Thursday April 20, 2017

    • Orange

    Friday April 21, 2017

    • None

    Saturday April 22, 2017

    • Red

    Sunday April 23, 2017

    • Green

    Monday April 24, 2017

    • None

    Tuesday April 25, 2017

    • None

    Wednesday April 26, 2017

    • Orange

    Thursday April 27, 2017

    • None

    Friday April 28, 2017

    • Yellow

    Saturday April 29, 2017

    • None

    Sunday April 30, 2017

    • None
    Click to listen highlighted text! Powered By GSpeech