Cannabis affects the severity of schizophrenic symptoms: results of a clinical survey
- 1 May 1986
- journal article
- research article
- Published by Cambridge University Press (CUP) in Psychological Medicine
- Vol. 16 (3), 515-520
- https://doi.org/10.1017/s0033291700010278
Abstract
Data on the history of cannabis use and a spot urine test for cannabinoids were obtained for 137 schizophrenics in treatment. Subjects who were using cannabis during the 6-month observation period presented with a significantly higher degree of delusional and hallucinatory activity than those who did not. Moreover, the group using cannabis made a higher average number of visits to the hospital during the same period. The status of cannabis use appeared to contribute to such variance more than did other relevant factors (age, stage of the illness, amount of medication prescribed, occasional use of other psychoactive substances).Keywords
This publication has 13 references indexed in Scilit:
- Cannabis and neuroleptic agents in schizophreniaActa Psychiatrica Scandinavica, 1984
- Zur Psychopathologie und Differentialdiagnose sogenannter CannabispsychosenFortschritte der Neurologie · Psychiatrie, 1983
- Detection of Marijuana Use in Psychiatric Patients by Determination of Urinary Delta-9-Tetrahydrocannabinol-11-oic AcidJournal of Nervous & Mental Disease, 1983
- CANNABIS-ASSOCIATED PSYCHOSIS WITH HYPOMANIC FEATURESThe Lancet, 1982
- EMIT Cannabinoid Assay: Confirmation by RIA and GC/MSJournal of Analytical Toxicology, 1981
- Marijuana use in schizophrenia: a clear hazardAmerican Journal of Psychiatry, 1978
- Tracking difficulties and paranoid ideation during hashish and alcohol intoxicationAmerican Journal of Psychiatry, 1976
- Drogemißbrauch und SchizophrenieArchiv Fur Psychiatrie Und Nervenkrankheiten, 1976
- Marihuana-Modified ManiaArchives of General Psychiatry, 1973
- Psychosis Associated with Cannabis SmokingBritish Journal of Addiction to Alcohol & Other Drugs, 1972