Jay Jenkins says he hesitated when a buddy suggested they vape CBD.

"It'll relax you," the friend assured.

The vapor that Jenkins inhaled didn't relax him. After two puffs, he ended up in a coma.

That's because the vapor he inhaled wasn't CBD, a natural compound that marketers say can treat a range of ailments without getting users high. Instead, the vape was spiked with a powerful, man-made street drug.

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