Three men are in stable condition at the hospital after police responded to three separate overdose calls within an hour in Mississauga.
Peel Regional Police say they were called to three different locations between 7:35 p.m. and 8:35 p.m. Monday night for overdose on drugs involving men suspected of smoking fentanyl in pill form.
All three men immediately became unconscious.
Two received Naloxone before the arrival of the first responders, one of whom required six doses before resuscitation.
In response, the Peel Regional Police issued a public safety notice on the unpredictable nature of illegal substances containing combinations of substances.
The police force says the combined drugs are manufactured illegally and in ways that cause inconsistencies in strength, which in turn makes them unpredictable and increasingly life-threatening for users.