PRIMARY STUDY

Impact of cannabis use and its cessation on the dosage and the efficacy of antipsychotic drugs in in- and outpatients with schizophrenia taking medication: A systematic review and meta-analysis

Key Findings:  Cannabis use did not affect the efficacy of antipsychotics, symptoms evolution, or higher rate of antipsychotic resistance in subjects with schizophrenia. Cannabis use was linked to a higher risk of relapse.