Cannabis-Induced Psychosis and an Antipsychotic-Induced Seizure: A Case Report

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To the Editor: Some studies suggest that cannabis-induced psychosis is an early sign of schizophrenia rather than a distinct clinical entity, while other studies suggest that cannabis use is associated with an increased risk of psychosis with a dose-dependent effect. The following case study describes a young man with no prior or family history of psychosis who became psychotic after smoking cannabis twice.

Case report. Mr A, a 20-year-old man with excellent premorbid functioning and no family history of schizophrenia, experienced mild paranoia after smoking cannabis for the first time in June 2015.