A new, deadly drug is spreading through American cities, sparking a crisis not of addiction – but of withdrawal. Medetomidine is a veterinary sedative, and if used by humans, it causes almost instant ...

PHILADELPHIA – A lethal sedative that has caused carnage in the US is now being mixed into one of the most popular drugs used by young people in the UK, experts have warned. Medetomidine is a “potent” ...