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Int J Dev Neurosci. 2011 May;29(3):335-46. doi: 10.1016/j.ijdevneu.2010.11.006. Epub 2010 Dec 21.

Why do patients with psychosis use cannabis and are they ready to change their use?

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  • 1Department of Psychosis Studies, Institute of Psychiatry, King's College London, United Kingdom.

Abstract

Numerous studies have shown that patients with psychosis are more likely to use illicit drugs than the general population, with cannabis being the most popular. There exists overwhelming evidence that cannabis use can contribute to the onset of schizophrenia and poor outcome in patients with established psychosis. Therefore, understanding why patients use cannabis and whether they are motivated to change their habits is important. The evidence is that patients with psychosis use cannabis for the same reasons the general population does, to 'get high', relax and have fun. There is little support for the 'self-medication' hypothesis, while the literature points more towards an 'alleviation of dysphoria' model. There is a lack of research reporting on whether psychotic patients are ready to change their use of cannabis, which has obvious implications for identifying which treatment strategies are likely to be effective.

Copyright © 2010 ISDN. Published by Elsevier Ltd. All rights reserved.

PMID:
21172414
[PubMed - indexed for MEDLINE]
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