As it causes serious side effects in humans and animals, why continue to use and sell it? Xylazine Drug – what is it? Xylazine (Tranq Dope) Common or street names: Tranq, Tranq dope, Sleep-cut, Philly dope, Zombie drug What is xylazine? Xylazine is a medicine used in veterinary (animal) medicine. It is NOT an opioid. … Continue reading What is the rationale for allowing the use of Xylazine in spite of its dangers to humans and animals?