Cannabis with high cannabidiol content is associated with fewer psychotic experiences

Christian D. Schubart, Iris E.C. Sommer, Willemijn A. van Gastel, Rogier L. Goetgebuer, René S. Kahn, Marco P.M. Boks

Research output: Contribution to journalArticlepeer-review

187 Scopus citations


Objective: Cannabis is associated with psychotic outcomes in numerous studies, an effect that is commonly attributed to δ 9-tetrahydrocannabinol (δ 9-THC). An increasing number of authors identify cannabidiol, another component of the cannabis plant, as an antipsychotic agent. The objective of the current study is to investigate the role of cannabidiol content in the association between cannabis use and psychiatric symptoms in a large non-clinical population of cannabis users. Methods: In a web-based cross-sectional study we obtained detailed information about cannabis use and subclinical psychiatric experiences using the Community Assessment of Psychic Experiences (CAPE). Different types of cannabis (i.e. marijuana, hashish etc.) have distinctive proportions of δ 9-THC and cannabidiol. Since average concentrations of δ 9-THC and cannabidiol in the most popular types of cannabis sold on the Dutch market are annually measured, we were able to estimate exposure to δ 9-THC and cannabidiol. Results: We included 1877 subjects (mean age 23, SD 6.0) who used the same type of cannabis in the majority of the occasions (in > 60% of occasions). We found a significant inverse relationship (F(1,1877): 14.577, p< 0.001) between cannabidiol content and self-reported positive symptoms, but not with negative symptoms or depression. The estimated effect size of cannabidiol content was small. Conclusion: Although the observed effects are subtle, using high cannabidiol content cannabis was associated with significantly lower degrees of psychotic symptoms providing further support for the antipsychotic potential of cannabidiol.

Original languageEnglish
Pages (from-to)216-221
Number of pages6
JournalSchizophrenia Research
Issue number1-3
StatePublished - Aug 2011
Externally publishedYes


  • Cannabidiol
  • Cannabis
  • Delta -tetrahydrocannabinol
  • Psychosis
  • Psychotic symptoms
  • Schizophrenia


Dive into the research topics of 'Cannabis with high cannabidiol content is associated with fewer psychotic experiences'. Together they form a unique fingerprint.

Cite this