The Potential Impact of Recreational Cannabis Legalization on the Prevalence of Cannabis Use Disorder and Psychotic Disorders: A Retrospective Observational Study.

Objectives: The principal objective of our study was to document the short-term impact of the legalization of recreational cannabis on active cannabis use, cannabis use disorder, and various psychotic disorders.

Methods: We carried out a retrospective observational study of patients who were at least 12 years old and who had visited a psychiatrist in the emergency unit of the (CHUS). We included all the consultations of this type over a 5-month period, immediately following the legalization of recreational cannabis in Canada.

[Impacts of Cannabis Legalisation on Mental Health: A Literature Review].

Objectives To review the known impacts of recreational cannabis legalization on mental health and substance use, in the context of recent changes in the status of cannabis laws in Canada. Methods PubMed database was systematically searched using various terms regarding mental health and cannabis legalization. Two independent investigators then assessed a total of 272 titles and abstracts and 11 articles were ultimately found eligible for review.