A helpful article on the subject. How much merit is there in the claim that marijuana is harmless and medically useful, and what are the negative effects of cannabis use?

Marijuana (cannabis) is the most widely used illegal drug in many developed countries. Medical studies have shown that the active ingredient in marijuana, delta-9-tetrahydrocannabinol (THC), might provide some medical benefits in some patients. Under the impression that these benefits were substantial, voters in California and Arizona approved initiatives allowing the use of “medical” marijuana by patients under certain circumstances. This paper represents a current review of the medical literature regarding the benefits and drawbacks of using marijuana for medical or recreational purposes. A companion paper examines the moral and biblical questions about the Christian’s use of marijuana.

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