Is Cannabidiol (CBD) an effective antipsychotic?

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Luke Sheridan Rains publishes his debut blog on a recent multicentre RCT of Cannabidiol (CBD) as an adjunctive therapy for people with schizophrenia, which suggests that CBD had a beneficial, but modest impact on positive psychotic symptoms and severity of illness when used alongside existing antipsychotics.

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Joint risks? Tobacco and cannabis and psychotic symptoms

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James MacCabe appraises a recent study, which looks at the association of combined patterns of tobacco and cannabis use in adolescents who go on to experience psychotic symptoms.

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Adolescent cannabis use increases risk of an adult psychotic diagnosis

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Thomas Richardson looks at a recent prospective cohort study in the British Journal of Psychiatry on adolescent cannabis use, baseline prodromal symptoms and the risk of psychosis.

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What do we know about women, cannabis and psychosis?

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Ian Hamilton and Suzi Gage explain why we know so little about the relationship between cannabis and severe mental illness in women.

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Risk factors and peripheral biomarkers for schizophrenia spectrum disorders

This 'umbrella review' aimed to systematically appraise the meta-analyses of observational studies on risk factors and peripheral biomarkers for schizophrenia spectrum disorders.

Marcus Munafo considers the findings of a systematic review of meta-analyses of observational studies, which looks at risk factors and peripheral biomarkers for psychotic disorders on the schizophrenia spectrum.

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Cannabis use can lead to relapse in psychosis, partially because patients stop taking medication

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Thomas Richardson writes his debut blog about a recent prospective analysis of poor medication adherence and risk of relapse associated with continued cannabis use in patients with first-episode psychosis.

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Does cannabis influence depression?

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Rob Allison and Ian Hamilton summarise a recent retrospective twin cohort study that explores the links between cannabis use and depression, suicidal thoughts and behaviours.

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Cannabis and psychosis: it’s high time for a review

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Joe Barnby considers the findings of a recent meta-analysis of cannabis use and symptoms severity in individuals at ultra-high risk for psychosis.

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NICE one? Is NHS guidance on substance misuse fit for purpose?

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Ian Hamilton explains why the National Institute for Health and Care Excellence have missed a trick by not updating their 2007 guidance on psychosocial interventions for substance misuse.

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Cannabis use during pregnancy: little known about impact on child or maternal health

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Ellen Grimas summarises a systematic review on prenatal exposure to cannabis and maternal and child health outcomes, which highlights the lack of high quality research in this area.

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