Dominic Cipriano couldn’t stop shaking. A drug dealer on the streets of Kensington had sold him a bag of what he thought was fentanyl. But whatever Cipriano had taken didn’t produce the familiar rush ...

Medetomidine, a veterinary sedative, mixed into fentanyl has sent thousands to hospitals, not only for overdose but for life-threatening withdrawal. It is spreading to other cities. Joseph is newly in ...