The Long-Term Relationship Between Cannabis and Heroin Use: An 18- to 20-year Follow-Up of the Australian Treatment Outcome Study (ATOS)

What is it about?

There is growing interest in whether cannabis use can assist in solving the opioid crisis. This study followed up a cohort of people with heroin dependence on seven occasions, over 18-20-years. Although cannabis and heroin use were significantly associated at some time-points, there was insufficient evidence to suggest a long-term relationship between the use of these substances.

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