Hospitals in the Lehigh Valley have been dealing with a recent increase in overdoses connected to the substance.
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Poison control centers across the country have had 1,900 calls since January 1st from people who had bad reactions.
Alabama alone had 317 calls in 18 days.
The drug isn't really marijuana, but chemicals sprayed on plant material.
New Jersey is another state reporting a big spike in bad reactions.
So far, doctors aren't sure what those chemicals are, causing bad reactions.