Recognizing overdose symptoms quickly can save a life. This guide explains what to do during a suspected overdose, how naloxone fits into an emergency response, when rescue breathing may help, what to expect afterward, and how to keep harm-reduction information current.
Overview
An overdose happens when a substance overwhelms the body. It may involve prescription medication, illicit drugs, alcohol, cannabis products, or a combination of substances. The risk can be higher when substances are mixed, when tolerance has changed after a period of reduced use, or when the strength or contents of a product are unknown.
Possible overdose symptoms vary, but emergency warning signs include unusual sleepiness or inability to wake, slow or stopped breathing, choking or gurgling sounds, blue or gray lips or fingertips, pinpoint pupils, seizures, severe confusion, collapse, chest pain, dangerously high body temperature, or repeated vomiting with reduced consciousness. Opioid overdoses often cause slowed breathing and unresponsiveness, but not every overdose looks the same. Do not wait for every symptom to appear.
If an overdose is suspected, call emergency services immediately. Put the phone on speaker, describe what may have been taken if known, and follow the dispatcher’s instructions. If the person is not breathing normally, begin the emergency steps you know and can safely perform. A person who is unconscious but breathing should generally be placed on their side in the recovery position, with the airway kept as clear as possible. Do not leave them alone, and do not assume that sleeping will make the problem resolve.
What to do during an overdose
- Check responsiveness and breathing. Speak loudly and gently tap the person. Look for normal breathing. Gasping, irregular breaths, or long pauses are not normal breathing.
- Call emergency services. Give the location first, then explain the symptoms and any known substances. If you are unsure whether it is an overdose, call anyway.
- Give naloxone if opioid overdose is possible. Naloxone can temporarily reverse opioid effects, including dangerous respiratory depression. It will not reverse overdoses caused only by non-opioids, but it is generally appropriate when opioids may be involved and should not be withheld while waiting for certainty.
- Follow the product instructions. Naloxone products differ. Nasal spray is placed in one nostril and administered according to its label; injectable products require their own instructions. If there is no response after the first dose, give another dose if available and directed by the product guidance or emergency dispatcher.
- Support breathing and stay with the person. If you are trained and willing, provide rescue breaths or CPR as appropriate. If you are not trained, follow the dispatcher’s instructions. Continue monitoring because naloxone may wear off before the opioid does.
Do not induce vomiting, put the person in a cold shower, force food or drink, or make them walk around. These actions do not treat an overdose and can increase injury or choking risk.
Maintenance cycle
Overdose guidance should be reviewed on a scheduled cycle because product instructions, local services, and emergency recommendations can change. A practical maintenance cycle is to review this information at least once a year and whenever naloxone packaging, a medication, or a household emergency plan changes.
Use the review to check several details:
- Whether naloxone is present, unexpired, and stored where more than one trusted person can find it.
- Whether everyone in the household knows the local emergency number and the basic signs of opioid overdose.
- Whether the naloxone device matches its current instructions and has not been damaged by heat, cold, or moisture.
- Whether important medication lists and emergency contacts are still accurate.
- Whether local pharmacies, community programs, or public health services offer naloxone and overdose education.
People who use opioids, take sedating medicines, support someone who does, or live with a history of substance use may want to keep naloxone accessible. Availability differs by location, so search for “naloxone near me” through a pharmacy, local health service, or community harm-reduction program and confirm current access details directly.
Signals that require updates
Some changes should trigger an immediate review rather than waiting for the regular cycle. Revisit the plan after a nonfatal overdose, a hospital discharge, a return to substance use after abstinence, a change in prescribed medication, or a move to a new area. Also review it when someone begins combining substances, when a new caregiver becomes involved, or when a person’s ability to respond to an emergency changes.
Information should also be checked when a product is replaced with a different naloxone formulation, when packaging or labeling changes, or when local emergency and treatment pathways are updated. Avoid relying on an old social-media post or an unlabeled medication. If the substance, amount, or timing is unknown, treat the situation as potentially serious and seek professional guidance.
Common issues
“They are awake, so there is no overdose.”
Early overdose symptoms can progress. Marked drowsiness, confusion, slowed breathing, vomiting, or an inability to stay awake warrants close observation and medical advice, especially after mixing substances.
“Naloxone fixed the problem.”
Naloxone is an emergency intervention, not a complete treatment. A person may become unresponsive again after initially improving, so emergency evaluation is still important. Naloxone can also cause sudden opioid withdrawal, which may produce agitation, nausea, sweating, or pain; these effects do not mean emergency care is unnecessary.
“I should wait to identify the substance.”
Do not delay a call for emergency help while searching for a package, counting pills, or trying to determine whether symptoms are caused by opioids, alcohol, stimulants, sedatives, or another substance. Share whatever information is available with responders, including containers, prescriptions, and approximate timing if safely known.
“Calling for help will automatically solve everything.”
Emergency response is the priority during a life-threatening event, but recovery support often begins afterward. A nonfatal overdose can be an opportunity to discuss safer medication use, naloxone access, treatment options, withdrawal risks, and mental health support without blame. For ongoing substance-use concerns, a clinician, treatment navigator, or peer-support service can help identify realistic next steps. If the crisis involves immediate emotional danger or thoughts of suicide, use the appropriate crisis line or emergency service; call emergency services when there is imminent danger.
When to revisit
Revisit this guide and your household plan on a regular schedule, after any overdose scare, and whenever medication or substance-use patterns change. Keep the action sequence simple: recognize danger, call emergency services, administer naloxone when opioid exposure is possible, support breathing, and remain present until help arrives.
After the emergency, write down what happened while details are fresh and arrange follow-up care. Ask about medication review, overdose-prevention education, treatment or recovery support, and mental health needs. Related planning can include learning about what to do after Narcan works, reviewing factors that raise overdose risk, and comparing 988 and 911 during a substance-use crisis. Keep the information practical, current, and easy to find—because in an overdose emergency, preparation matters more than perfect certainty.
