NORML New Zealand

There is no conclusive evidence that the effects of cannabis are causally linked to the subsequent use of other illicit drugs. Preliminary animal studies alleging that cannabis use primed the brain for other drug-taking behavior have not been replicated, nor are they supported by epidemiological human data. Statistically, for every 104 Americans who have tried cannabis, there is only one regular user of cocaine, and less than one user of heroin.

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There is no conclusive evidence that the effects of cannabis are causally linked to the subsequent use of other illicit drugs. Preliminary animal studies alleging that cannabis use primed the brain for other drug-taking behavior have not been replicated, nor are they supported by epidemiological human data. Statistically, for every 104 Americans who have tried cannabis, there is only one regular user of cocaine, and less than one user of heroin.

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