Naloxone and Opioid Overdose: Recognize and Respond
Recognize dangerously slow breathing, call 911, give naloxone and stay because its effect can wear off.
Adapted from a guide first written for Quebec readers: passages specific to Quebec were removed. Rules in your province may differ.
Signs
The person is unresponsive, breathes very slowly, irregularly or not at all, makes abnormal snoring or gurgling sounds, has blue lips or pinpoint pupils. When unsure, treat as an emergency.
Call 911
Report abnormal breathing, give the exact address and follow instructions. Do not let fear of judgment delay the call.
Give naloxone
Use the kit as trained and labelled. Naloxone does not replace breathing support, CPR or emergency care. Give another dose at the stated interval if there is no response.
Support breathing
Use rescue breathing or CPR according to training and dispatcher instructions. Use an AED when indicated.
Stay
Improvement may be temporary and sudden withdrawal may cause agitation. Do not allow more substances. Use the recovery position if breathing and monitor.
Avoid harm
Do not use a bath, walking, coffee, stimulants, food or induced vomiting.
Reduce risk
Avoid using alone, use less after a break, avoid alcohol or sedative combinations and use local checking or supervised services.
After the emergency
Offer care without pressure or blame. Replace the dose that was used, record what happened and seek support for witnesses and loved ones as well.
Official government resource (French)
Sources and limits
Official government sources are linked. Reviewed August 28, 2026; confirm current and local instructions.
General information based on federal and national rules; provincial rules may differ. Confirm with the official body before acting. Last reviewed : 2026-08-28.