Police in Saskatoon are warning the public about a dangerous synthetic drug they believe is behind at least three deaths in the city.
They say the drug fentanyl is being sold as Oxycontin 80.
Investigators say counterfeit Oxycontin pills were taken by a 19-year-old man last Saturday and by two other men in September.
Toxicology tests show the pills contained a lethal dose of fentanyl.
The drug is considered much more powerful than heroin and can be lethal, even in small doses.
Authentic Oxycontin is white inside with a blue-green coating, while the fake pills are blue-green throughout.
