Does using marijuana increase the risk for developing schizophrenia?

J Clin Psychiatry. 2013 Apr;74(4):e08. doi: 10.4088/JCP.12012tx2c.


As more US states and other countries consider legalizing marijuana, clinicians need to know the possible effects of this drug. Research has shown a connection between marijuana use and an increased risk for schizophrenia in young people who are vulnerable to developing psychosis. An international panel of experts addresses topics such as risk factors for schizophrenia, the potency and effects of cannabis use on adolescents, the effects of concurrent drug use with cannabis on schizophrenia risk, and current attitudes toward marijuana.

MeSH terms

  • Adolescent
  • Adult
  • Cannabis / adverse effects*
  • Genetic Predisposition to Disease
  • Humans
  • Marijuana Abuse / complications*
  • Risk Factors
  • Schizophrenia / chemically induced
  • Schizophrenia / etiology*
  • Schizophrenia / genetics