The impact of proposed regulatory changes and rescheduling on low-dose codeine purchasing in Canada: a time-series analysis

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.

Centre for Addiction and Mental Health (Boone); Li Ka Shing Knowledge Institute (Antoniou, Kitchen, Gomes), St. Michael’s Hospital; ICES Central (Antoniou, Juurlink, Tadrous, Gomes); Department of Family and Community Medicine (Antoniou), University of Toronto, Toronto, Ont.; London Health Sciences Centre (Rolf von den Baumen), London, Ont.; Nuffield Department of Primary Care Health Sciences (Richards), University of Oxford, Oxford, UK; Women’s College Hospital (Tadrous); Institute for Health Policy, Management, and Evaluation (Gomes), University of Toronto, Toronto, Ont.