Public Health Sudbury and Districts is warning of "heavier sedation" in drug overdoses in the Sudbury and Manitoulin districts.
The health unit says the cause of the increase in sedation's unknown, but calls it a reminder that street drugs could be cut or mixed with dangerous substances such as benzos, fentanyl, or carfentanil.
It urges caution if using drugs, including not doing so when you're alone - but not using them at the same time as an accompanying friend - starting with a lower dose and going slow, avoiding mixing drugs with other drugs or alcohol, and always carrying a naloxone kit.
It also recommends - in the case of a suspected overdose - to give naloxone and call 9-1-1.