Is marijuana safe? It's more complicated than you think

February 27, 2015 4:42 PM

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Is marijuana safe? It's more complicated than you think

The margin of exposure, a ratio that calculates the likelihood of lethal drug overdose, for daily drug use. (Dirk Lachenmeier and Jürgen Rehm. Scientific Reports, 5: 8126 | DOI: 10.1038/srep08126. Creative Commons.)

There are at least 10 drugs that are more deadly than marijuana, including some that are legal, such as alcohol and nicotine, a new study by researchers in Germany and Canada finds.

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