xylazine

Xylazine, an animal tranquilizer, is increasingly finding its way into street drugs across the country. Analysts at New Hampshire's state crime lab estimate they’re finding it in about 15% of the fentanyl they test.

The sedative xylazine is starting to permeate illegal opioids and cocaine. It does not respond to naloxone, an overdose reversal medication, and may be to blame for grisly injuries and infections.