Tennessee first responders train for overdoses from a popular drug that Narcan can't help

CHATTANOOGA, Tenn. — First responders in Tennessee are now training on how to respond to overdoses involving an increasingly popular drug that can be deadly.

Xylazine, commonly known as 'tranq,' is an animal tranquilizer and is sometimes mixed with fentanyl.

The emergency medicine Narcan is now widely popular and available to treat overdoses.

But 'tranq' is not an opioid, and that means Narcan is ineffective.

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