A 20-year study examined the long term relationship between cannabis and illicit opioid use. Overall results were inconsistent and showed no strong link. The study showed that clinicians and policymakers should be cautious about relying on cannabis to reduce …

A 20-year Australian study has found no evidence to suggest cannabis reduces illicit opioid use, and it may not be an effective long-term method of reducing harm for those with an opioid use disorder…