Why the U.S. designated the animal tranquilizer xylazine an ’emerging threat’

Concerns are growing about overdoses linked with an animal tranquilizer mixed with opioids. The Biden administration declared the combination of xylazine and fentanyl an emerging threat. It’s the first time any drug has been given that designation. Ali Rogin discussed the threat with Dr. Raagini Jawa of the University of Pittsburgh Medical Center.

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