A new study found that 44 percent of medical cannabis users stopped taking a pharmaceutical drug, or used less of one, or both, in favor of cannabis. They rated marijuana better than pharmaceutical drugs on effectiveness, side effects, availability and cost.

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A new study found that 44 percent of medical cannabis users stopped taking a pharmaceutical drug, or used less of one, or both, in favor of cannabis. They rated marijuana better than pharmaceutical drugs on effectiveness, side effects, availability and cost.