Scalzo said the prohibitions don't come a moment too soon. Little is known about the health effects of the drug. But he's heard enough anecdotal reports about strange behavior -- ranging from extreme agitation to withdrawal to a suicide after smoking K2 -- to be concerned.
"This chemical was not meant to be used in any kind of pharmaceutical manner," Scalzo said.
The U.S. National Institute of Drug Abuse has more about synthetic THC.
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