Raw information on community-based prescription opioid dispensing for years 2005-2020 were obtained from a large national database based on a stratified sample of 6500 retail pharmacies across Canada (IQVIA/Compuscript), These data were converted into Defined-Daily-Doses/1000 population/day (DDD/1000/day) for individual (strong and weak) opioid formulations-specifically: fentanyl, hydromorphone, hydrocodone, morphine, oxycodone, codeine-per standard methods. 
IQVIA/Compuscript