title: Cannabis and psychosis.
abstract: BACKGROUND
  Cannabis use is commonly identified in people who present with psychosis.
  
  
  OBJECTIVE
  This case study aims to provide a practical approach for general practitioners seeing patients with comorbid cannabis and mental health concerns.
  
  
  CONCLUSIONS
  Cannabis related comorbidity is commonly seen in general practice. General practitioners can manage most presentations and help to reduce the likely occurrence of cannabis induced psychosis through the use of psychosocial support, brief interventions and harm minimisation.
authors.affiliation: School of Psychiatry and Clinical Neurosciences, University of Western Australia. Moira.Sim@health.wa.gov.au
authors.forename: Moira G
authors.initials: MG
authors.lastname: Sim
authors.forename: Eric
authors.initials: E
authors.lastname: Khong
authors.forename: Gary
authors.initials: G
authors.lastname: Hulse
mesh_terms: D000328:Adult; D001521:Behavior Therapy / Q000379:methods; D003073:Cognitive Dissonance; D003219:Confidentiality; D005194:Family Practice / Q000379:methods*; D006212:Hallucinations / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D008297:Male; D002189:Marijuana Abuse / Q000150:complications / Q000628:therapy*; D010817:Physician-Patient Relations; D011368:Professional-Family Relations