In testing over the past three months, University of Calgary researchers have found a wider variety of substances mixed ...

A designer drug described as 10 times more potent than fentanyl is causing an uptick in U.S. overdoses, according to health officials in multiple states. Known as cychlorphine, the synthetic opioid is ...

There was an increase in suspected opioid overdose deaths in Toronto over several days last week, Toronto Public Health warns ...

Beginning in 2023, there was less fentanyl in the U.S. drug supply. The opioid-overdose reversing drug naloxone’s availability is increasing and so is access to addiction treatment. Experts say the ...