If someone may be overdosing right now:
- Call 911.
- Give naloxone (Narcan) if you have it.
- Try to keep them awake and breathing.
- Lay them on their side so they don’t choke.
- Stay with them until help arrives.
A fentanyl overdose slows, and then stops, a person’s breathing. It can happen within minutes, and it often happens to people who didn’t know they were taking fentanyl at all. The good news is that an opioid overdose can be reversed if someone recognises it and acts quickly. This page covers what to look for and what to do.
The signs of a fentanyl overdose
These are the signs the CDC lists for an opioid overdose. Fentanyl is an opioid, so the signs are the same. A person may show only some of them.
- They can’t be woken up. Loud voice, a firm rub on the breastbone — no response.
- Slow, shallow or no breathing. Breathing may be irregular or stop altogether.
- Choking, gurgling or snoring sounds. This is often mistaken for someone sleeping deeply. It isn’t sleep; it’s a blocked or failing airway.
- Pinpoint pupils. Very small pupils that don’t react to light.
- A limp body.
- Discolored skin, especially the lips and nails. On lighter skin this tends to look bluish or purple; on darker skin it may look grayish or ashen (SAMHSA).
If you’re unsure, treat it as an overdose. Naloxone won’t harm someone who hasn’t taken opioids.
What a fentanyl overdose looks like
People who have seen one often describe the same things: someone who was “nodding off” and then couldn’t be roused, a person slumped over with lips turning blue or gray, or someone making a loud snoring sound that then went quiet. The most important sign is breathing. If a person can’t be woken and isn’t breathing normally, act.
What it feels like — and why people don’t realise it’s happening
Early on, fentanyl causes heavy drowsiness and a sense of warmth or calm. As breathing slows, oxygen drops and the person loses consciousness. They usually can’t recognise that they’re overdosing, which is why overdoses so often happen when someone uses alone.
What to do: step by step
1. Call 911
Say that someone isn’t breathing or can’t be woken up. The dispatcher can talk you through what to do while you wait.
2. Give naloxone
Naloxone (brand name Narcan) reverses an opioid overdose. The nasal spray goes in one nostril — lay the person on their back, tilt the head, insert the nozzle, press the plunger.
If they don’t start breathing normally, wait 2–3 minutes and give a second dose (CDC). More than one dose may be needed when fentanyl is involved.
3. Keep them breathing
Try to keep them awake. If you’ve been trained in rescue breathing or CPR, the 911 dispatcher can guide you.
4. Put them on their side
If they’re breathing but not awake, roll them into the recovery position — on their side, top knee bent, head tilted slightly back — so they don’t choke if they vomit.
5. Stay with them
Naloxone can wear off before the fentanyl does, so the person can stop breathing again. Stay until emergency services arrive, even if they wake up and say they’re fine. SAMHSA advises staying with the person for at least four hours after the last dose of naloxone.
Where to get naloxone in Texas
In March 2023 the FDA approved naloxone nasal spray for over-the-counter sale without a prescription (FDA). Texas Health and Human Services confirms that no prescription is required. You can buy it at most pharmacies. If anyone in your home uses opioids — prescribed or not — keep naloxone where people can find it, and tell them where it is.
Calling 911 in Texas: will I get in trouble?
Fear of the police stops some people from calling. Texas law does give limited legal protection (Health and Safety Code §481.115) to the first person who calls 911 for someone’s overdose, and to the person who overdosed, against some small-quantity possession charges. It is narrow: the caller has to stay and cooperate, and it doesn’t apply to anyone with a prior drug conviction or deferred adjudication, or who has sought help for an overdose in the previous 18 months. The point is this: a person who isn’t breathing needs help in minutes. Call.
Why fentanyl overdoses happen so easily
- It’s extremely strong. Fentanyl is up to 50 times stronger than heroin and 100 times stronger than morphine (CDC). The DEA notes that two milligrams can be lethal, depending on a person’s size and tolerance.
- It’s hidden in other drugs. In 2024, the DEA found that 5 out of 10 fake prescription pills it tested contained a potentially deadly dose. Counterfeit Xanax, Percocet and Adderall can look identical to the real thing. Fentanyl is also found in cocaine and methamphetamine.
- Tolerance drops fast. After a period without opioids — detox, jail, hospital, a few days off — a person’s usual amount can be enough to kill them.
- Mixing makes it worse. Alcohol, benzodiazepines and other sedatives also slow breathing.
After an overdose
Surviving an overdose is often the moment people, and their families, decide something has to change. It’s also a high-risk time, because the things that led to the overdose usually haven’t changed yet.
Stopping fentanyl isn’t simply a matter of willpower. Withdrawal is intense, and medications such as buprenorphine and methadone are among the most effective treatments for opioid use disorder. Our pages on opioid withdrawal and medically supervised fentanyl detox explain what treatment involves.
If you want to talk about it — for yourself or someone you love — our admissions team answers 24 hours a day at (866) 971-7393. You can also check your insurance coverage online.
Frequently asked questions
How fast does a fentanyl overdose happen?
It can happen within minutes of use. That’s why having naloxone on hand, and not using alone, matter so much.
Can you survive a fentanyl overdose?
Yes, if breathing is restored quickly. Naloxone and a fast 911 call save lives. Without help, a lack of oxygen can cause brain damage or death.
Is fentanyl poisoning the same as an overdose?
“Fentanyl poisoning” is often used when someone took fentanyl without knowing it — for example, in a counterfeit pill. The signs and the response are the same.
Will naloxone hurt someone who isn’t overdosing on opioids?
No. Naloxone only acts on opioids. If you’re not sure what someone took, give it anyway and call 911.
Can you overdose from touching fentanyl?
No. The American College of Medical Toxicology says small, unintentional skin contact with fentanyl powder or tablets cannot cause significant opioid intoxication. Wash it off with water. The real danger is fentanyl taken into the body, often unknowingly.
Last updated: October 2026. Medically reviewed by Mitchell Naficy, MD, Medical Director at Tru Dallas Detox & Recovery Center (Texas Medical Board license W1860), October 2026. This page is general information, not medical advice. In an emergency, call 911.
