Safety & Harm Reduction · 6 of 25

Responding to a suspected overdose

Call emergency services immediately. Fast action matters even when you are unsure which substance is involved.

Take these steps

  • Check for immediate hazards before approaching.
  • Try to get a response and check whether breathing is normal.
  • Call 911; use speakerphone if possible. Tell the dispatcher your exact location.
  • Give naloxone if an opioid overdose is possible and it is available. Follow the kit directions.
  • If the person is unresponsive and not breathing normally, start CPR as directed by the dispatcher. Use an AED if available and follow its prompts.
  • If unconscious but breathing normally, place the person on their side and monitor breathing. Stay until help arrives.

Avoid harmful responses

Do not give food, drinks, or more substances. Do not put someone in a cold shower or leave them alone. If breathing changes, tell the dispatcher immediately. Naloxone does not replace breathing support or medical care.

If you are helping someone

If you are a child or teen, call 911 and get a trusted adult if possible. Keep yourself safe and follow the dispatcher.

WARN (OTHERS)

After immediate care is covered, share dated advisories or observed concerns. Say what is confirmed and what is uncertain. Protect people’s privacy.

Emergency care comes first. Never share someone’s name, identifying photo or private health details.

Learn more

For everyone across Canada. General education; individual care needs medical advice. For a medical emergency, call 911, keep yourself safe, and follow the dispatcher’s directions.

Free to share and print

Pass this guide to someone who wants to learn, or print a paper copy. Keep the instructions, source links and TRDP credit intact. Check the current page before reprinting.

Download this guide as plain text (.txt). To save a PDF, use “Print this guide” and choose your browser’s Save as PDF option.

Help make safety easier for everyone.

Was this resource useful? Honest feedback, including what didn’t work, helps TRDP improve. Safety information is always available whether you respond or skip.

Testing your own site?

This is a browser preference, not verified identity. New feedback sent here is marked as self-declared testing. It does not remove visits from native Sites Analytics or identify you on other devices.