Journal article

What are the policy implications of the evidence on cannabis and psychosis?

Wayne Hall, Louisa Degenhardt

The Canadian Journal of Psychiatry | SAGE PUBLICATIONS INC | Published : 2006

Abstract

OBJECTIVE: To explore the implications for mental health services, for health education about the risks of cannabis use, and for public policy toward cannabis use of observational evidence that cannabis use is a contributory cause of psychosis. METHOD: Using comparative analyses of similar evidence for the harmful effects of alcohol, tobacco, and amphetamine use, we considered the relation between observational evidence and action on cannabis. We examined arguments on the grounds of public health prudence for discouraging cannabis use by young individuals. With the assumption that the relation may be causal, we considered recommendations for policy in mental health services, health education..

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