Xylazine is an animal tranquilizer that is being cut into the drug supply. When Xylazine is mixed with other drugs (like fentanyl, heroin, or a benzo), the chance of an overdose goes up. Additionally, Xylazine is linked with severe wounds, which spread and worsen very quickly. Xylazine test strips are still being tested to see if they work well enough to detect cuts in the drug supply. The STASH ID team at NHSSP may use a xylazine test strip in combination with FTIR to see if your substance contains xylazine. Xylazine does not respond to Narcan, if you suspect someone is overdosing call 911, use Narcan, and if the person is still not breathing, give rescue breaths.