Study shows drop in painkiller overdoses since legalizing medical marijuana

Study shows drop in painkiller overdoses since legalizing medical marijuana
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A new study shows legalizing medical marijuana has had an unexpected side-effect.

Researchers at Johns Hopkins report a 25 percent drop in deaths linked to prescription painkillers like Oxycontin and Vicodin.

The authors say if further research shows a strong link between medical marijuana and fewer overdose deaths, lawmakers should consider legalizing pot, which could help reduce the risk of overdose for chronic pain patients.