Naloxone (brand name Narcan) is a medication that can rapidly reverse an opioid overdose. It's safe, it's increasingly easy to get, and having it on hand — for yourself or someone you love — is one of the most concrete ways to prevent a death. This guide covers how to recognize an overdose, how to respond, and how naloxone works. It's educational: in any suspected overdose, call 911 first.
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What naloxone is Recognizing an overdose How to respond How to get naloxone in California After using it Your next stepWhat naloxone is
Naloxone knocks opioids off the brain's receptors and restores normal breathing during an overdose. It works only on opioids, it's not addictive, and it can't get anyone high — if it's given to someone who isn't actually overdosing on opioids, it simply does nothing. That safety profile is why it's meant to be used without hesitation when overdose is even suspected. It comes most commonly as a nasal spray.
Recognizing an opioid overdose
Signs someone may be overdosing on opioids include:
- Slow, shallow, or stopped breathing (the most important sign)
- Can't be woken — unresponsive to shouting or a firm shake
- Blue or grayish lips or fingertips; very pale or clammy skin
- Pinpoint pupils
- Limp body, gurgling or choking sounds
How to respond
If you suspect an overdose: call 911 first. Then, if naloxone is available, give it (nasal spray into one nostril). Try to wake and stimulate the person, and if they aren't breathing, begin rescue breathing or CPR if you're able. Naloxone can wear off before the opioid does, so a second dose may be needed after a few minutes — and the person still needs emergency medical care even if they wake up. Stay with them until help arrives.
How to get naloxone in California
Naloxone is widely available — in California and much of the country it can be obtained at pharmacies without an individual prescription, and many community organizations distribute it for free. If you or someone close to you uses opioids, getting naloxone and keeping it accessible is a straightforward, high-impact step. A provider or pharmacist can point you to the easiest local option.
After naloxone is used
Because naloxone can trigger sudden withdrawal, a revived person may wake up sick and disoriented — that's expected and far better than the alternative. They still need to be seen by emergency responders, because the overdose can return as naloxone wears off. This moment is also, for many people, a turning point toward treatment.
If this is a turning point
Surviving an overdose — your own or a loved one's — is often when people reach for help. When you're ready, our free, private consult can help you understand the paths forward, with no pressure. Start with a free consult.
If you or someone with you may be overdosing — slow or stopped breathing, can't be woken — call 911 now. In emotional crisis? Call or text 988, any hour.
Frequently asked questions
What does naloxone (Narcan) do?
It rapidly reverses an opioid overdose by restoring normal breathing. It works only on opioids, isn't addictive, can't cause a high, and does nothing if the person isn't overdosing on opioids — which is why it's safe to use whenever overdose is suspected.
How do I know if someone is overdosing?
Key signs are slow, shallow, or stopped breathing; being unresponsive; blue or gray lips or fingertips; pinpoint pupils; and a limp body. Breathing trouble plus unresponsiveness is the clearest warning — call 911.
How do I get naloxone in California?
It's available at many pharmacies without an individual prescription and free through many community organizations. A pharmacist can help you get it. If you or someone close uses opioids, keeping it on hand is strongly advised.
What do I do after giving naloxone?
Call 911 if you haven't, stay with the person, give rescue breaths or CPR if needed, and be ready to give a second dose if they don't respond in a few minutes. They still need emergency care because the overdose can return as naloxone wears off.
Keep reading: Fentanyl & Recovery · Opioid Withdrawal Timeline · For Families · All guides
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