Hostname: page-component-848d4c4894-m9kch Total loading time: 0 Render date: 2024-05-12T06:22:41.820Z Has data issue: false hasContentIssue false

Is “cannabis psychosis” a distinct category?

Published online by Cambridge University Press:  16 April 2020

G Thornicroft
Affiliation:
PRiSM Institute of Psychiatry, De Crespigny Park, LondonSE5 8AF
G Meadows
Affiliation:
Maudsley Hospital, Denmark Hill, LondonSE5 8AFUK
P Politi
Affiliation:
3Universita di Pavia, Istituto di Clinica Psichaitrica, Via Bassi 21, 27100Pavia, Italy
Get access

Summary

Forty-five cases of psychotic patients with admission urinalysis positive for cannabis were compared with psychotic controls without evidence of cannabis use. Cases and controls were matched for age, sex and year of admission, and were compared for socio-demographic data, circumstances of admission, diagnosis, and symptoms at admission. Three differences were found: cases were more likely to be Afro-Caribbean than white (P = 0.01), to manifest incoherence of speech (P= 0.02) and agitation (P= 0.01). In other respects the case and control groups were indistinguishable, and no pattern of symptoms characterised the “cannabis psychosis“group. These findings do not support the view that “cannabis psychosis” has a distinct psycho-phenomenological pattern Epidemiological studies are required to further clarify the association for psychotic patients between Afro-Caribbean ethnic groups and the likelihood of having a positive urine test for cannabis.

Type
Original article
Copyright
Copyright © Elsevier, Paris 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ames, F (1958) A clinical and metabolic study of acute intoxication with cannabis sativa and its role in the model psychoses. J Ment Sci 104, 972999CrossRefGoogle ScholarPubMed
Andreasson, SAllebeck, PEngstrom, ARydberg, U (1987) Cannabis and schizophrenia: a longitudinal study of Swedish conscripts. Lancet ii, 14831485CrossRefGoogle Scholar
Andreasson, SAlleaeck, ARydberg, U (1989) Schizophrenia in users and non-users of cannabis. Acta Scand Psychiatr, 79 505510CrossRefGoogle Scholar
Ashton, H (1987) Cannabis: dangers and possible uses. Br Med J 294, 141142CrossRefGoogle ScholarPubMed
Beaubrun, M (1986) Jamaica: Contrasting Patterns of Cannabis Use.In: Drug Use and Misuse (Edwardo, GArif, AJaffe, J eds). Croon Helm, LondonGoogle Scholar
Carney, MBacelle, LRobinson, B (1984) Psychosis after cannabis abuse. Br Med J 288, 1047CrossRefGoogle ScholarPubMed
Chopra, GSmith, J (1974) Psychotic reactions following cannabis use in East Indians. Arch Gen Psychiatry 30, 2427CrossRefGoogle ScholarPubMed
Davison, KWilson, C (1972) Psychosis associated with cannabis smoking. Br J Addict 67, 225228CrossRefGoogle ScholarPubMed
Dhunjibhoy, J (1930) A brief resume of the types of insanity commonly met with in India with a full description of “Indian Hemp Insanity” peculiar to the country. J Ment Sci 76, 254264CrossRefGoogle Scholar
Foerster, ALewis, SOwen, MMurray, R (1992) Do risk factors for schizophrenia also predict premorbid functioning in psychosis? (in press)Google Scholar
Ghodse, AH (1986) Cannabis psychosis Br J Addict 81, 487492CrossRefGoogle ScholarPubMed
Halikas, JGoodwin, DGuze, S (1972) Arch Gen Psychiatry 27, 162165CrossRefGoogle Scholar
Harding, TKnight, F (1973) Marijuana-modified mania. Arch Gen Psychiatry 29, 635637CrossRefGoogle Scholar
Harrison, GHolton, ANeilson, DOwens, DBoot, DCooper, J (1989) Severe mental disorder in Afro-Caribbean patients: some social, demographic and service factors. Psychol Med (1989) 19, 683696CrossRefGoogle ScholarPubMed
Indian Hemp Drugs Commission Report, Simla(1894) Keshavan, MLishman, WA (1986) Prolonged depersonalisation following cannabis abuse. Br J Addic 81, 140141CrossRefGoogle Scholar
Institute of Psychiatry and Maudsley Hospital (1989) Psychiatric Examination Notes on Eliciting and Recording Clinical Information in Psychiatric Patients. (Second edn). Oxford University Press, OxfordGoogle Scholar
Isbell, CGorodetzsky, CJasinski, DClaussen, USpulak, FKorte, F (1967) Effects of (-)D9,-transtetrahyrocannabinol in man. Psychopharmacologia 11, 184188CrossRefGoogle Scholar
Knight, F (1976) Role of cannabis in psychiatric disturbance. Ann NY Acad Sci 282, 6471CrossRefGoogle ScholarPubMed
Lewis, A (1968) Cannabis appendix to the Report by the Advisory Committee on Drug Dependence. LondonHMSOGoogle Scholar
Miller, FBusch, FTanenbaum, J (1989) Drug abuse in schizophrenia and bipolar disorder. Am J Drug Alcohol Abuse 15, 291295CrossRefGoogle ScholarPubMed
Negrete J Cannabis and schizophrenia(1988) Br J Addict 84, 349351Google Scholar
Rathod, N (1975) Cannabis psychosis.In: Cannabis and Man (Connell, PDorn, N eds). Churchill Livingstone, LondonGoogle Scholar
Robins, EGuze, S (1970) Establishment of diagnostic validity of psychiatric illness: its application to schizophrenia. Am J Psychiatry 126, 983987CrossRefGoogle Scholar
Rottanburg, DRobins, ABen-Arie, OTeggin, AElk, R (1982) Cannabis-associated psychosis with hypomanic features. Lancet 13641366CrossRefGoogle ScholarPubMed
Symanski, H (1981) Prolonged depersonalisation after marijuana use. Am J Psychiatry 138, 231233Google Scholar
Test, MWallisch, LAllness, DRipp, D (1989) Substance use in young adults with schizophrenic disorders. Schizophren Bull 15, 465476CrossRefGoogle ScholarPubMed
Thacore, VR (1973) Bhang psychosis. Br J Psychiatry 123, 225229CrossRefGoogle ScholarPubMed
Thornicroft, G (1990) Cannabis and psychosis: is there epidemiological evidence for an association? Br J Psychiatry 157, 2533CrossRefGoogle Scholar
Treffert, D (1978) Marijuana use in schizophrenia: a clear hazard. Am J Psychiatry 135, 12131215Google ScholarPubMed
Tunving, K (1985) Psychiatric effects of cannabis use. Acta Psychiatric Scand 72, 209217CrossRefGoogle ScholarPubMed
Warnock, J (1903) Insanity from hasheesh. J Ment Sci 49, 96110CrossRefGoogle Scholar
Weller, MAng, PLatimer-Sayer, DZachary, A (1988) Drug abuse and mental illness. Lancet i, 997CrossRefGoogle Scholar
Weil, A (1970) Adverse reactions to marihuana. N Engl J Med 282, 9971000CrossRefGoogle ScholarPubMed
Wing, JCooper, JSartorius, N (1974) Measurement and Classification of Psychiatric Symptoms. Cambridge University Press, CambridgeGoogle Scholar
Submit a response

Comments

No Comments have been published for this article.