Los Angeles officials are trying to stop the spread of the flesh-eating drug xylazine that has taken over the city. The ‘zombie drug’, a veterinary tranquilizer approved in the US for cows and horses, is now flooding the illicit US drug market, with dealers often cutting it with cocaine and heroin. But it is most often used to cut fentanyl, the lethally potent synthetic opioid that already kills tens of thousands of Americans every year. The drug has spread to Los Angeles of late, with news crews capturing people hunched over and on the ground, strung out on the drug. The problem, Los Angeles County Sheriff’s officials say, is that the drug is technically a legal substance. The county is now desperately trying to track xylazine’s presence throughout the city, according to KTLA.