Trends in opioid dispensing to injured workers following codeine scheduling changes in Australia: a retrospective cohort study

Up-scheduling low-dose codeine in 2018 does not appear to have changed the supply to Australians with workers' compensation time lossclaims for low back pain. Temporary increases in high-dose codeine, the mean dose of other opioids and prevalence of other pain medicines appear to indicate a shift to alternative analgesics.