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Daily, high‐potency cannabis use linked to first‐episode psychosis
Publication year - 2019
Publication title -
the brown university child and adolescent psychopharmacology update
Language(s) - English
Resource type - Journals
eISSN - 1556-7567
pISSN - 1527-8395
DOI - 10.1002/cpu.30393
Subject(s) - cannabis , potency , psychosis , psychiatry , psychology , medicine , biology , biochemistry , in vitro
Daily use of marijuana (cannabis) is associated with a greater than three times increased risk of psychotic disorder compared to never users, according to a study published in the March 19 issue of Lancet Psychiatry . This risk increased to nearly five times if high‐potency cannabis was used. Across the 11 sites included in the study, if high‐potency cannabis were not available, 12.2% of cases of first‐episode psychosis could be prevented, rising to 30.3% in London and 50.3% in Amsterdam.