The Gateway Effect of Marijuana
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Policy Brief

The Gateway Effect of Marijuana

Given the weak evidence for a causal relationship between youth marijuana use and subsequent use of other drugs, policymakers should not be overly concerned about the brain chemistry gateway effect.

The term “gateway effect” refers to the possibility that users of one drug, such as marijuana or alcohol, will subsequently use another drug, such as amphetamines, LSD, or opioids.

Given the weak evidence for a causal relationship between youth marijuana use and subsequent use of other drugs, policymakers should not be overly concerned about the brain chemistry gateway effect.

Policy Brief: The Gateway Effect of Marijuana

Julian Morris is a senior fellow at Reason Foundation and executive director of the International Center for Law and Economics.