
This Feb. 15, 2010, file photo shows a package of K2, which contains herbs and spices sprayed with a synthetic compound chemically similar to THC, the psychoactive ingredient in marijuana.
The Illinois Department of Public Health reported 22 people in the past few weeks visited emergency rooms with severe bleeding after using a synthetic cannabinoid product.
Most of those affected were in the Chicago area, but health officials warned the contaminated products could also be present elsewhere across the state, said department spokeswoman Melaney Arnold.
Though synthetic pot has long been considered dangerous, severe bleeding is not a known side effect, said Dr. Melissa Millewich, an emergency room physician at Advocate Good Samaritan Hospital in Downers Grove.
"This bleeding is not expected, at least in such a significant population so quickly," she said.














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