A new drug called "flysky" has been spreading throughout the Pittsburgh region, and officials are warning that it can be deadly.

‘Flysky’ is heroin mixed with a veterinary tranquiliser called medetomidine (Picture: Getty Images) A new drug dubbed ‘flysky’ is spreading through the US, with officials warning it can ...

Pittsburgh doctors and first responders warn of Narcan-resistant drug It's known on the street as "Flysky," and the animal tranquilizer in the mix of drugs is resistant to Narcan.

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A new drug called "flysky" has been spreading throughout the Pittsburgh region, and officials are warning that it can be deadly. In Fayette County over the last few days, there have been at least ...