(NBC NEWS) -- Despite dire warnings about the dangers of synthetic cannabinoids, popularly known by names such as K2, Spice, Black Mamba and Kronic, they continue to grow in popularity. Just yesterday, 33 people were rushed to the hospital in Brooklyn, N.Y. with symptoms that suggested an overdose on the drugs, according to an NBC4 New York report.
The city's health department told the station that there have been more than 6,000 K2-related emergency room visits and two confirmed deaths in New York City since 2015. In January, the American Association of Poison Control Centers listed 1,462 exposures.
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