1560 results for cannabis AND psychosis in The British Journal of Psychiatry & past titles
Cannabis and Psychosis: Is there Epidemiological Evidence for an Association?
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- Journal:
- The British Journal of Psychiatry / Volume 157 / Issue 1 / July 1990
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- 02 January 2018, pp. 25-33
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- July 1990
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- CANNABIS AND PSYCHOSIS Graham Thornicroft, MA, MSc,MRCPsych,Medical Research Council Training Fellow, MRC Social and Community Psychiatry Unit, Institute of Psychiatry, De Crespigny Park, London SES8AF
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Cannabis and Psychosis
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- The British Journal of Psychiatry / Volume 144 / Issue 4 / April 1984
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- 29 January 2018, pp. 442-443
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- April 1984
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- CANNABIS AND PSYCHOSIS DEARSIR, I read with great interest Professor Edwards' paper (Journal, November, 1983, 143, 509—12)on an inter view with a ‘¿_patient'describing his psychotic experi ences after the use of cannabis in a dose defined as “¿_massive―.
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Cannabis and psychosis
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- The British Journal of Psychiatry / Volume 197 / Issue 4 / October 2010
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- 02 January 2018, p. 333
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- October 2010
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- Regardless of the aetiological relationship of cannabis use to psychosis onset, this study highlights an important point – people take cannabis because they feel that they derive benefit from it, and patients with psychosis are no different in this respect. In terms of clinical practice, this paper highlights one reason why service users may continue to smoke cannabis, despite the fact that it clearly worsens their psychotic symptoms.
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Cannabis and psychosis
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- The British Journal of Psychiatry / Volume 185 / Issue 4 / October 2004
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- 02 January 2018, p. 352
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- October 2004
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- How can cannabis lead to psychosis? Are some subjects specifically vulnerable to the psychotogenic effect of cannabis? Several studies, including the Dunedin study, have suggested that adolescents are more vulnerable to cannabis ( Arseneault et al , 2004 ). Interestingly, the effects of cannabis on cognitive function also seem more pronounced in adolescents ( Ehrenreich et al , 1999 ; Pope et al , 2003 ).
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Psychosis and Cannabis Abuse in the Gambia: A Case-Control Study
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- The British Journal of Psychiatry / Volume 163 / Issue 6 / December 1993
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- 02 January 2018, pp. 798-801
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- December 1993
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- It is possible that caffeine in the tea acted as a co-factor with cannabis to induce psychosis. The literature on cannabis use and psychosis is both diverse and conflicting due to several factors: the con founding effects of other drugs, the absence of labora tory markers for schizophrenia, the unreliability of history alone, variation in the use of psychiatric termi nology and the varying effect that cannabis may have on people of differing culture and personality.
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High-potency cannabis and the risk of psychosis
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- The British Journal of Psychiatry / Volume 195 / Issue 6 / December 2009
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- 02 January 2018, pp. 488-491
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- December 2009
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- This is not surprising because cannabis consumption is very common among adolescents in the UK: 40% of British children aged 15–16 years have used cannabis. 1 However, psychosis was associated with more frequent and longer use of cannabis.
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Cannabis toxic psychosis while on disulfiram
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- The British Journal of Psychiatry / Volume 164 / Issue 3 / March 1994
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- 02 January 2018, p. 421
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- March 1994
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- High Royds Hospital Ilkley L529 6AQ Cannabis toxic psychosis while on disulfiram S. CURRAN SIR: A 36-year-old man who had been on disulfiram (Antabuse) for a month smoked cannabis as a substi tute for alcohol. He immediately developed an acute confusional state (with lowered level of conscious ness, disorientation, misperceptions, believing the orangejuice he was drinking was wine, and rambling, repetitive speech).
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Causal association between cannabis and psychosis: examination of the evidence
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- The British Journal of Psychiatry / Volume 184 / Issue 2 / February 2004
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- 02 January 2018, pp. 110-117
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- February 2004
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- psychosis.
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Psychotic symptom and cannabis relapse in recent-onset psychosis: Prospective study
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- The British Journal of Psychiatry / Volume 189 / Issue 2 / August 2006
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- 02 January 2018, pp. 137-143
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- August 2006
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- In addition, little information is available on key variables associated with relapse to cannabis use among individuals with psychosis.
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Cannabis use and misuse prevalence among people with psychosis
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- The British Journal of Psychiatry / Volume 187 / Issue 4 / October 2005
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- 02 January 2018, pp. 306-313
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- October 2005
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- Where possible the authors of studies were contacted to identify whether specific information on cannabis and psychosis or schizophrenia was available. We identified 164 clinical studies that might have contained information on cannabis use and psychosis. The following review is based on 53 studies that met the inclusion criteria. In addition, five epidemiological studies that met the inclusion criteria were analysed separately.
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Adolescent cannabis use, baseline prodromal symptoms and the risk of psychosis
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- The British Journal of Psychiatry / Volume 212 / Issue 4 / April 2018
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- 04 March 2018, pp. 227-233
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- April 2018
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- Unfortunately, because of the relatively low number of individuals with psychosis among the cannabis users, we could not reliably study the interaction of these risk factors (parental psychosis and adolescent cannabis use).
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Psychosis and cannabis
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- The British Journal of Psychiatry / Volume 164 / Issue 4 / April 1994
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- 02 January 2018, p. 566
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- April 1994
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- ina 29425-0742 USA Psychosis and cannabis SIR: In their case-control study of psychosis and cannabis use, Rolfe et a! (BJP, December 1993, 163, 798—801) seem not to have considered the possibility that the association they found between these vari ables might have been due to psychotic patients using the drug in an attempt to control their symptoms.
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Psychosis reactivity to cannabis use in daily life: an experience sampling study
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- Journal:
- The British Journal of Psychiatry / Volume 196 / Issue 6 / June 2010
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- 02 January 2018, pp. 447-453
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- June 2010
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- on psychosis outcome.
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Cannabis and stimulant disorders and readmission 2 years after first-episode psychosis
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- Journal:
- The British Journal of Psychiatry / Volume 204 / Issue 6 / June 2014
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- 02 January 2018, pp. 448-453
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- June 2014
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- Some studies have found that substance use at psychosis onset predicts poorer outcomes. 15 , 16 We have used health-system data for a population of 7.3 million persons to examine the risk of readmission in young people following a first admission for psychosis. Neither cannabis nor stimulant diagnoses at baseline predicted readmission after controlling for age, gender and diagnostic subtype.
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Cannabis-induced psychosis and subsequent schizophrenia-spectrum disorders: follow-up study of 535 incident cases
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- The British Journal of Psychiatry / Volume 187 / Issue 6 / December 2005
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- 02 January 2018, pp. 510-515
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- December 2005
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- Criticism has centred on the concept of ‘cannabis psychosis’, and has primarily been based on studies failing to show a symptom profile distinct from other psychoses ( Imade & Ebie, 1991 ; Mathers & Ghodse, 1992 ; McGuire et al , 1995 ). Numerous symptom clusters have been described as characteristic of ‘cannabis psychosis’, and an exact meaning of the concept has never been established ( Thornicroft, 1990 ; Hall & Degenhardt, 2004 ).
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Letter to the editor about ‘Adolescent cannabis use, baseline prodromal symptoms and the risk of psychosis’
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- The British Journal of Psychiatry / Volume 217 / Issue 2 / August 2020
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- 27 July 2020, p. 458
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- August 2020
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- Similarly, while mentioning the association between adolescent cannabis use and subsequent psychosis (on page 230 in the first paragraph of the Associations between adolescent cannabis use and subsequent psychosis subsection) the authors state that 18 out of 375 (4.8%) cannabis users received a diagnosis of psychosis during the 15-year follow-up (4 narrow-defined schizophrenia, 4 schizophrenia spectrum disorder, 0 bipolar disorder with psychotic features, 7 major depression with psychotic features
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Cannabis and psychotic illness
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- The British Journal of Psychiatry / Volume 161 / Issue 5 / November 1992
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- 02 January 2018, pp. 648-653
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- November 1992
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- Acute cannabis-induced psychosis is much more likely in those with histories of major psychotic disorder. A group of patients with chronic cannabis-induced psychosis was not found in this study. ‘¿_Chronic cannabis-induced psychosis' could simply be those with ‘¿_chronicintoxication'. The drug has a long half life in the body owing to its sequestration into fat and gradual release (Millman & Sbriglio, 1986; Schwartz, 1987; Negrete, 1988).
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Psychiatric effects of cannabis
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- Journal:
- The British Journal of Psychiatry / Volume 178 / Issue 2 / February 2001
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- 02 January 2018, pp. 116-122
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- February 2001
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- Hall et al ( 1994 ) suggest that the fundamental questions are: is there a cannabis psychosis, and does cannabis precipitate an underlying psychosis? In theory, cannabis use may precipitate a psychosis in the following ways. (a) Acute use of large doses of the drug may induce a toxic or organic psychosis with symptoms of confusion and hallucination, which remit on abstinence.
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Psychiatric Symptoms in Cannabis Users
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- Journal:
- The British Journal of Psychiatry / Volume 163 / Issue 2 / August 1993
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- 02 January 2018, pp. 141-149
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- August 1993
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- G. (1984) Psychosis after cannabis abuse. British Medical Journal, 288, 1381. CARNEY, M., BACELLE, L. & ROBINSON, B. (1984) Psychosis after cannabis abuse. British Medical Journal, 288, 1047. C@utMty,P. & LIPSEDGE,M. (1984) Psychosis after cannabis abuse. British Medical Journal, 288, 1381. CASWELL, A. (1991) Marijuana as medicine. Medical Journal of Australia, 156, 497—498. CHAUDRY, H. R., Moss, H. B., BASHIR, A., et al (1991) Cannabis psychosis following bhang ingestion.
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Cannabis, COMT and psychotic experiences
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- The British Journal of Psychiatry / Volume 199 / Issue 5 / November 2011
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- 02 January 2018, pp. 380-385
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- November 2011
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- Results from the Dunedin study found no evidence that risk of psychosis was increased by cannabis use in individuals who were methionine homozygotes. 9 It would be incorrect however to interpret this as meaning that methionine homozygotes can use cannabis with impunity in relation to risk of psychosis.
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