Treating Overdose with Narcan

What Everyone Needs To Know About Saving Lives With Narcan

Table of Contents

Since the beginning of the new century, the number of opioid overdose deaths has increased by more than 400%, but there’s a medication on the market that promises to reduce the number of fatal overdoses: Narcan.

Today, this life-saving drug is credited for saving thousands of lives across the US. Learn what it is and how it works.

What is Narcan?

In the past, drug overdose was believed to be something that happened to social deviants and took place in dark alleys. As overdose cases have spiked in multiple states recently, overdose prevention has become a hot topic among scientists who are looking for a tool for harm reduction.

The search led to naloxone, better known for its brand name Narcan, a drug that made resuscitation, rescue, and “reversal” after an overdose possible. Since its approval for opioid overdose in the United States in 1971, naloxone has shifted law, policy, clinical medicine, and science toward harm reduction.1

Today, it’s not unusual to see law enforcement officers carrying Narcan. With the Good Samaritan Act, police officers on patrol have the right to carry Narcan and Automated External Defibrillators (AED) with them. They can now save the life of a person who is overdosing before the medical team arrives. This is crucial as police officers are often the first ones to arrive on the scene, and naloxone can only be effective if it’s administered four to six minutes after someone overdoses.


Narcan is not effective in reversing the effects of an overdose of benzodiazepines, barbiturates, GHB, clonidine, and ketamine. It also cannot prevent an overdose due to stimulants such as cocaine and amphetamines.1

Video: How to Use NARCAN® (naloxone HCl) Nasal Spray

00:00 if you know someone who takes 00:01 prescription opioids like percocet or 00:03 oxycontin or illegal opioids like heroin 00:07 then you should know about the risk of 00:09 an accidental life-threatening opioid 00:11 overdose in fact over 56% of overdoses 00:15 happen in private homes beyond the 00:17 immediate reach of doctors and nurses 00:19 there's a way for you to help someone 00:21 who is experiencing an opioid overdose 00:24 even if you don't have specialized 00:25 medical training in this video our 00:27 instructions for use as well as the uses 00:30 and safety information you should know 00:31 for using narcan but first it's 00:34 important to be able to recognize the 00:36 signs of an overdose signs of an opioid 00:38 overdose include not waking up or 00:41 responding to your voice or touch 00:42 breathing that is very slow irregular or 00:45 has even stopped the dark center part of 00:48 the eyes becomes very small sometimes 00:50 called pinpoint pupils fingernails and 00:52 lips turn blue or purple a slow 00:55 heartbeat weak pulse or low blood 00:57 pressure if someone has these signs 00:59 here's how you can help 01:00 narcan nasal spray is a medicine that 01:02 reverses the effects of an opioid 01:04 overdose narcan nasal spray is not a 01:07 substitute for emergency medical care 01:09 repeated doses may be necessary as with 01:12 any drug you need to be aware of 01:14 important safety information about its 01:16 use please pay particular attention to 01:18 the indications and important safety 01:20 information at the end of this video 01:22 also please see the accompanying full 01:24 prescribing information in the use of 01:26 this product narcan nasal spray was 01:28 designed for use wherever an emergency 01:30 opioid overdose happens because it 01:33 doesn't require specialized medical 01:35 training it can be given to someone by 01:37 following these instructions first 01:39 lay the person on their back then remove 01:42 the device from the box and peel back 01:44 the package 01:47 hold the device with your thumb on the 01:49 bottom of the plunger and two fingers on 01:51 either side of the nozzle tilt the 01:53 person's head back and provide support 01:56 under their neck with your hand place 01:58 and hold the tip of the nozzle in one 01:59 nostril until your fingers touch the 02:01 bottom of their nose press the plunger 02:03 firmly to give the dose into the 02:05 person's nose after giving the dose 02:07 remove the device from the person's 02:09 nostril and move them on their side 02:11 positioning their hands under their head 02:14 call 911 see medical help right away 02:17 after giving the first dose of narcan 02:19 nasal spray even if the person wakes up 02:22 narcan is not a substitute for emergency 02:24 medical care keep the person under 02:26 observation if the person doesn't 02:29 respond by waking up to voice or touch 02:31 or breathing normally after two to three 02:33 minutes administer the second dose 02:35 provided in the box in the alternate 02:37 nostril if they respond and the signs of 02:39 an opioid emergency have returned after 02:41 narcan nasal spray is given then give 02:44 another dose in the alternate nostril 02:45 using a new device and watch them 02:47 closely until emergency help is received 02:50 additional doses may be given every two 02:52 to three minutes until they respond or 02:54 emergency medical help is received after 02:57 using narcan nasal spray put the device 02:59 in its box and then dispose in a place 03:01 safe from children 03:02 narcan nasal spray delivers a consistent 03:05 concentrated four milligram dose of 03:07 naloxone that can reverse the effects of 03:09 a life-threatening opioid overdose in 03:11 minutes 03:12 visit narcan calm to learn more there's 03:15 a way for you to help someone who is 03:17 experiencing an opioid overdose even if 03:20 you don't have specialized medical 03:22 training 03:23 indications and important safety 03:25 information 03:26 what is narcan nasal spray narcan nasal 03:29 spray is a prescription medicine used 03:30 for the treatment of an opioid emergency 03:33 such as an overdose or a possible opioid 03:35 overdose with signs of breathing 03:37 problems and severe sleepiness or not 03:39 being able to respond 03:41 narcan nasal spray is to be given right 03:43 away and does not take the place of 03:44 emergency medical care get emergency 03:46 medical help right away 03:48 giving the first dose of narcan nasal 03:50 spray even if the person wakes up 03:52 narcan nasal spray is safe and effective 03:54 in children for known or suspected 03:55 opioid overdose what is the most 03:58 important information I should know 04:00 about narcan nasal spray narcan nasal 04:02 spray is used to temporarily reverse the 04:04 effects of opioid medicines the medicine 04:07 in narcan nasal spray has no effect in 04:09 people who are not taking opioid 04:10 medicines always carry narcan nasal 04:13 spray with you in case of an opioid 04:14 emergency use a narcan nasal spray right 04:17 away if you or your caregivers think 04:19 signs or symptoms of an opioid emergency 04:21 are present even if you are not sure 04:23 because an opioid emergency can cause 04:25 severe injury or death signs and 04:27 symptoms of an opioid emergency may 04:29 include unusual sleepiness and you are 04:32 not able to awaken the person with a 04:33 loud voice or by rubbing firmly on the 04:36 middle of their chest breathing problems 04:38 including slow or shallow breathing and 04:40 someone difficult to awaken or who looks 04:42 like they are not breathing the black 04:43 circle in the center of the colored part 04:45 of the eye is very small sometimes 04:47 called pinpoint pupils in someone 04:49 difficult to awaken family members 04:52 caregivers or other people who may have 04:54 to use narcan nasal spray in an opioid 04:56 emergency should know where narcan nasal 04:58 spray is stored and how to give narcan 05:00 nasal spray before an opioid emergency 05:03 happens get emergency medical help right 05:05 away after giving the first dose of 05:07 narcan nasal spray rescue breathing or 05:09 CPR may be given while waiting for 05:12 emergency medical help the signs and 05:14 symptoms of an opioid emergency can 05:16 return after narcan nasal spray is given 05:18 if this happens give another dose after 05:20 2 to 3 minutes using a new narcan nasal 05:23 spray and watch the person until 05:25 emergency help is received who should 05:27 not use narcan nasal spray do not use a 05:30 narcan nasal spray if you are allergic 05:31 to naloxone hydrochloride or any of the 05:34 ingredients in narcan nasal spray what 05:37 should I tell my healthcare provider 05:38 before using narcan nasal spray before 05:41 using narcan nasal spray tell your 05:42 healthcare provider about all of your 05:44 medical conditions include 05:46 if you have heart problems are pregnant 05:49 or plan to become pregnant use of narcan 05:51 nasal spray may cause withdrawal 05:53 symptoms in your unborn baby your unborn 05:55 baby should be examined by a healthcare 05:57 provider right away after you use narcan 05:59 nasal spray our breastfeeding or plan to 06:02 breastfeed it is not known if narcan 06:04 nasal spray passes into your breast milk 06:05 tell your healthcare provider about the 06:08 medicines you take including 06:09 prescription and over-the-counter 06:10 medicines vitamins and herbal 06:12 supplements what are the possible side 06:14 effects of narcan nasal spray narcan 06:17 nasal spray may cause serious side 06:18 effects including sudden opioid 06:21 withdrawal symptoms in someone who has 06:23 been using opioids regularly opioid 06:25 withdrawal symptoms can happen suddenly 06:27 after receiving narcan nasal spray and 06:29 may include body aches diarrhea 06:31 increased heart rate fever runny nose 06:34 sneezing goosebumps sweating nausea or 06:37 vomiting nervousness restlessness or 06:40 irritability shivering or trembling 06:42 stomach cramping weakness increased 06:45 blood pressure in infants under 4 weeks 06:47 old who have been receiving opioids 06:49 regularly sudden opioid withdrawal may 06:51 be life-threatening if not treated the 06:53 right way sienten symptoms include 06:55 seizures crying more than usual and 06:57 increase reflexes these are not all of 07:00 the possible side effects of narcan 07:02 nasal spray call your doctor for medical 07:04 advice about side effects the risk 07:06 information provided here is not 07:08 comprehensive to learn more talk about 07:10 narcan nasal spray with your healthcare 07:12 provider or pharmacist the fda-approved 07:15 product labeling can be found at WWN 07:19 arcane calm slash PDF slash narcan - 07:22 prescribing information PDF or one eight 07:27 four four four narca n you are 07:31 encouraged to report negative side 07:32 effects of prescription drugs to the FDA 07:34 visit WWF da govt slash MedWatch or call 07:40 one 800 ft 8 n 88 please see full 07:43 prescribing information including the 07:45 patient information for narcan nasal 07:47 spray 07:48 you

The Opioid Epidemic

The opioid epidemic in the US began in 2010 as a result of a large number of opioid prescriptions being given to treat severe pain. Pain management in the US is a serious issue. It’s estimated that millions of adults in the US live with chronic pain. A 2019 study found that over 20% of adults suffered from chronic pain and 7.4% of adults suffered from high-impact chronic pain.2

The most common opioids that are abused include:









Opioid Misuse Statistics

Since 1999, approximately 841,000 people have died from drug overdoses, and in recent years, opioids have played a large part in that number. A study found that 70.6% of drug overdose deaths in 2019 involved opioids. Moreover, over 70% of these opioid-related deaths included synthetic opioids.3

The Centers for Disease Control and Prevention estimates that prescription opioid misuse poses an economic burden. It costs the US government roughly $78.5 billion every year, and the costs include healthcare, lost productivity, and substance use disorder treatment.

How Does Narcan Work?

Opioid receptors are found on nerve cells all around the body. When opioids attach to receptors, they change the activity of the cell. In the brain, they lead to feelings of sleepiness and comfort, and in the brainstem, they cause relaxed breathing and reduced cough. In the spinal cord, opioids slow down pain signals, and in the gastrointestinal tract, they can cause constipation.

Narcan is an opioid antagonist. It blocks opioid receptors from being activated. It attaches so firmly to the receptors that it knocks other opioids off.4

When administered right away, Narcan can work in minutes to reverse the effects of an overdose. It works for 30 to 90 minutes before the opioids return to the receptors.

The nasal form of Narcan is given to someone who’s lying on their back. Narcan can also come in the form of a device that’s injected directly into the thigh. In some cases, more than one dose is required.4

Once the drug is administered, the person’s breathing must be monitored. If the person stops breathing, CPR should be given to them until the medical team arrives.

According to the National Institute on Drug Abuse, from 1996 to 2014, around 26,500 lives were saved from an opioid overdose due to Narcan.

Narcan Side Effects

Narcan is generally safe, but it has a few potential side effects. As it knocks opioids off their receptors, it can promote some symptoms of withdrawal.

Here are some of the critical side effects that may appear while taking Narcan:

Body aches





Nausea / Vomiting

Cardiac arrest






Excessive crying






Video: How Naloxone Saves Lives in Opioid Overdose

Transcript: NALOXONE SAVES LIVES No time to sit idly by. More and more people are dying of overdose from the likes of heroin, fentanyl, and prescription pain medications like oxycodone and hydrocodone. 00:14 These are all examples of opioids. Opioids are drugs derived from the opium poppy plant or made in the lab. They can treat pain, cough and diarrhea. But opioids can also be addictive and even deadly. 00:31 The number of opioid overdose deaths has escalated more than 400% since the turn of the century, with tens of thousands of lives now being lost every year. But many deaths can be prevented with a life-saving treatment: naloxone. 00:46 When given right away, naloxone can work in minutes to reverse an overdose. Naloxone is safe, has few side effects, and some forms can be administered by friends and family. When is naloxone used? 01:02 You can save a life. First, recognize signs of overdose: Limp body; Pale, clammy face; Blue fingernails or lips; Vomiting or gurgling sounds; Inability to speak or be awakened; 01:15 Slow breathing or heartbeat. If you see these symptoms, call 911 immediately and consider the use of naloxone if available. How is naloxone given? Home preparations include a nasal spray given to someone while they lie on their back 01:32 or a device that automatically injects medicine into the thigh. Sometimes more than one dose is needed. The person’s breathing also needs to be monitored. If the person stops breathing, 01:44 consider rescue breaths and CPR if you are trained until first responders arrive. How does naloxone work? Naloxone is an opioid antagonist, which means that it blocks opioid receptors from being activated. It is so strongly attracted to the receptors that it knocks other opioids off. 02:04 When opioids are sitting on their receptors, they change the activity of the cell. Opioid receptors are found on nerve cells all around the body: In the brain, opioids produce feelings of comfort and sleepiness. 02:18 In the brainstem, opioids relax breathing and reduce cough. In the spinal cord and peripheral nerves, opioids slow down pain signals. In the gastrointestinal tract, opioids are constipating 02:33 These opioid actions can be helpful! The body actually produces its own opioids called “endorphins,” which help calm the body in times of stress. Endorphins help produce the “runner’s high” 02:45 that helps marathon runners get through grueling races. But opioid drugs, like prescription pain medications or heroin, have much stronger opioid effects. And they are more dangerous. Over time, frequent opioid use makes the body dependent on the drugs. 03:01 When the opioids are taken away, the body reacts with withdrawal symptoms such as headache, racing heart, soaking sweats, vomiting, diarrhea, and tremors. For many, the symptoms feel unbearable. 03:17 With continued use, opioid receptors also become less responsive and the body develops tolerance to the drugs. More drugs are needed to produce the same effects... which makes overdose more likely. 03:31 Overdose is dangerous especially for its effect in the brainstem, relaxing breathing. Breathing can be relaxed so much that it stops…leading to death. 03:43 Naloxone knocks opioids off their receptors all around the body. In the brainstem, naloxone can restore the drive to breathe. And save a life. But even if naloxone is successful,opioids are still floating around, so expert medical care should be sought as soon as possible. 04:01 Naloxone works for 30-90 minutes before the opioids return to their receptors. Naloxone may promote withdrawal because it knocks opioids off their receptors so quickly. But otherwise naloxone is safe and unlikely to produce side effects. 04:18 Naloxone saves lives. From 1996 to 2014, at least 26,500 opioid overdoses in the United States were reversed by laypersons using naloxone. 04:31 While naloxone is a potentially life-saving treatment, more needs to be done to solve the opioid overdose epidemic. The National Institutes of Health launched the HEAL Initiative in 2018, expanding research across multiple NIH Institutes and Centers 04:47 to speed scientific solutions to the national opioid crisis. Research is underway to improve treatments for opioid misuse and addiction, and to enhance pain management. The National Institute on Drug Abuse, or NIDA, 05:01 is the leading NIH institute for research on opioid misuse and addiction, and its support helped the development of the user-friendly naloxone nasal spray. For more information, see NIDA’s website at and search “naloxone,” 05:17 or visit and search “NIH heal initiative." General opioid information can also be found at This video was produced by MedlinePlus, 05:31 a trusted source of health information from the National Library of Medicine.

Other Types of Naloxone

Buprenorphine Naloxone

Buprenorphine-naloxone is a combination medicine that’s used to treat opiate addiction. It was approved by the US Food and Drug Administration (FDA) in 2002 as an office-based maintenance treatment for opioid dependence. It has been shown to decrease the number of hospital admissions, morbidity, and mortality.5

The drug combination is also administered in inpatient and outpatient care, where the goal is to find the lowest dose to eliminate opioid use, reduce withdrawal symptoms, and improve treatment retention.

Pentazocine Naloxone

Pentazocine Naloxone is a drug combination prescribed to treat severe pain. Pentazocine is an opioid pain reliever that acts on the central nervous system (CNS) to relieve pain. When Pentazocine is used for an extended period, it can cause mental and physical dependence.

Naloxone is added to the mix to prevent misuse of the opioid. It acts on the CNS to block the effects of opioids, especially the “high” feeling that makes people want to abuse them.6

Recognizing Opioid Overdose

An opioid overdose requires a fast diagnosis. In some cases, it can be challenging to distinguish between a high and an overdose. To save a life, it’s essential to know the signs of when a person is experiencing an intense high versus when they’re experiencing an overdose.

When someone is experiencing an intense high from a substance like heroin, they will display the following signs:

Falling asleep or losing consciousness


Limp body

Intense scratching due to itchy skin

Slurred speech or inability to talk

Slow and shallow breathing

Choking or gurgling sounds

Blue/purple fingernails or lips

Erratic pulse

Slow heartbeat or low blood pressure

If the person is awake, it’s recommended to walk them around, keep them awake, and monitor their breathing. It’s also important not to leave them alone.

Opioid overdose is dangerous, mainly due to its effect in the brainstem that leads to relaxed breathing. Breathing can relax so much that it can stop, resulting in death. When a person is administered Narcan, their breathing can be restored.

Moreover, mixing opioids with alcohol and sedatives increases the risk of respiratory depression and death. The combination of opioids, sedatives, and alcohol is often present in fatal opioid overdoses.

Video: Opioid and Narcotics Overdose Signs and Symptoms

Transcript: 0:04 Opioids are a central nervous system depressant. 0:08 They slow everything, they bring down pain, 0:11 they bring down your breathing rate, 0:13 they bring down your blood pressure. 0:16 In reasonable doses, they're very effective for people 0:19 with say a broken leg, but when you overdose on narcotics, 0:23 your breathing rate drops, your blood pressure drops 0:27 and you become unconscious. 0:29 If you're not breathing enough, 0:31 the lack of oxygen to the brain can cause irreparable damage 0:35 and eventually it leads to cardiac arrest. 0:38 It sometimes can be hard to distinguish 0:40 between cardiac arrest and narcotic overdose. 0:44 If this is cardiac arrest, we know seconds count, start CPR. 0:50 CPR will also help the narcotic overdose. 0:54 Once you've started resuscitation with CPR, 0:57 if you think there could be narcotics playing a role, 1:01 then get naloxone as soon as you can 1:04 to reverse the effects of the narcotic. 1:07 Narcotic addiction and abuse affects everyone, 1:11 all classes, all people, all ages, all types. 1:15 I work as a medical director for an ambulance service 1:18 and in one 12 hour shift, I can pronounce three people 1:22 from narcotic overdose that my paramedic crews 1:25 are trying to save. 1:27 Learn the signs and symptoms of narcotic overdose 1:31 and learn what to do to save their life. 1:34 (inspirational music)

Overdose Deaths

Overdose deaths contribute to between a third and a half of all drug-related deaths. In most cases, overdose deaths are attributed to opioids.

With continued use, opioid receptors become less responsive. The body develops a tolerance to the drug, and in order to produce the same effects, more of the substance must be taken. This makes opioid overdose more likely.

The rate of fatal opioid overdoses has risen steadily over the years. In 2010, there were approximately 21,088 opioid-related deaths. This number rose to 47,600 by 2017. By 2019, the number of opioid-involved deaths rose to 49,860.7

As the opioid epidemic is occurring on a large scale, the number of opioid overdoses can be reduced by individual actions. When a person survives, it’s because someone was there to respond.

High-Risk Populations

There’s a specific group of people who are at a higher risk of experiencing an opioid overdose. The group includes people who:

Have developed an opioid dependence

Inject opioids

Use prescription opioids and take higher doses than recommended

Use opioids in combination with other substances, like alcohol and sedatives

Take opioids and have medical conditions like depression, liver or lung disease, and HIV

There’s also a group of people who are more likely to witness an opioid overdose. This group includes people who:

Are abusing opioids

Are friends and family of someone with an opiate use disorder

Are in contact with people who overdose, including health-care workers, police officers, emergency service workers, peer education and outreach workers

Treating an Opioid Overdose

Death from an opioid overdose can be prevented if Narcan and basic life support are provided shortly after the overdose. However, for Narcan to be effective, the medicine must be given to the person four to six minutes after they overdose.

If a family member or a friend has access to Narcan, it’s possible to save their loved one’s life by administering the drug themselves. Narcan can reverse the effects of a fatal overdose and keep the person alive until the medical care team arrives.

Many programs have proven that equipping people who are most likely to witness an opioid overdose with Narcan can help prevent the worst-case scenario.

Narcan Programs

From 1996 to 2010, 188 programs located in 15 states and the District of Columbia gave take-home naloxone to people who were taking opioids. The survey, completed in 2010, found that these programs trained and provided naloxone to around 50,000 people and received reports of more than 10,000 overdose reversals.8

Consequently, many countries began adopting this approach. Many jurisdictions in the US have been providing healthcare and community workers with Narcan in an attempt to reduce the number of opioid overdoses. As of today, naloxone is available in all 50 states and, in many states, can be purchased at a pharmacy without a prescription.9

How to Prevent and Manage an Opioid Overdose

To reduce the number of deaths resulting from an opioid overdose, it’s helpful to learn how to prevent and manage an opioid overdose.

Five steps are recommended to first responders to reduce the number of deaths resulting from opioid overdoses, including:10


Assessing the signs

Calling for help

Administering Narcan

Performing CPR


Assessment and Stimulation

Assess the Signs

The first step in saving a life is assessing the signs. When a person overdoses, they can show some or all of the following signs:

Contracted and small pupils

Relaxed muscles

Falling asleep or dozing

Loss of consciousness

Slow and shallow breathing

Slurred speech

Blue/purple fingernails or lips

Choking or gurgling sounds


If an opioid overdose is confirmed, the next step is to provide stimulation.

A person can be stimulated by calling their name. If they don’t respond, grind knuckles into the sternum or rub knuckles on the person’s upper lip.

If the person responds, it’s critical to make sure they remain responsive and breathing. Continue monitoring their breathing until the medical team arrives.

If the person doesn’t respond, it’s crucial to call 911.

Call for Help

Calling for medical help is essential. Someone with medical expertise must tend to the person as soon as possible.

If you are having difficulties distinguishing between a high and an overdose, it’s best to treat the case as an overdose and call 911 immediately.

What to Say to 911

Dial 911 and say, “Someone is unresponsive and not breathing.” The 911 operator will ask for a specific address and description of the location.

The next step would be to follow the dispatcher’s instructions, which might include beginning CPR.

What to do While Waiting 

While waiting for the medical team to arrive, it is essential to try to keep the person awake and breathing. As opioids cause shallow breathing, it’s vital to check whether they’re breathing regularly. Never leave the person alone and wait until the emergency team arrives on the scene. You will not get in trouble for reporting an overdose.

How to Administer Narcan

Narcan should be given to any person who’s showing signs of an opioid overdose.

In some cases, more than one dose might be needed. For example, people who have taken more potent opioids might not respond with only one dose of Narcan. As fentanyl has a higher potency compared to heroin, multiple doses may be required to reverse the effects of an overdose.

If the person who’s overdosing doesn’t respond 2 to 3 minutes after they’ve been given a dose, it’s advised to administer a second dose of Narcan.

The effects of Narcan depend on the number of doses, route of administration, and overdose symptoms.


The FDA has approved Narcan in a nasal form. The product delivers a therapeutic dose of Narcan in the case of an overdose. The spray comes prefilled and requires no assembly. It’s sprayed into one nostril while the patient lays on their back.


In its injectable form, Narcan generally comes supplied as a kit with a minimum of two doses and two syringes. First responders can receive training on how to administer Narcan using a syringe from the provider of the kit.


The FDA has also approved a naloxone auto-injector as a means for preventing an opioid overdose. The auto-injector can deliver a dose of Narcan through clothing, and it’s injected in the outer thigh. The device provides verbal instructions describing how to deliver the medication once it’s turned on.

After administering Narcan to the person experiencing an overdose, it’s important to explain to them what is happening. Withdrawal triggered by Narcan can lead to unpleasant feelings and confusion or agitation. It’s helpful to provide reassurance and say words of comfort.

Perform CPR

If the person has slow and shallow breathing or is not breathing at all, it is vital to offer ventilatory support. Two methods can be very effective in providing ventilatory support: rescue breathing and chest compressions.

To offer rescue breathing, it’s critical to follow these steps:

Make sure that the person's airway is clear

Tilt their head back, and pinch the nose closed

Place your mouth over the person's mouth to make a seal

Give two slow breaths

Watch to see whether the person's chest will rise

Give one slow breath every 5 seconds until the person resumes breathing

To give chest compressions:

Place the person on their back

Press hard and fast on the center of their chest

Keep your arms extended


A person who has overdosed and received Narcan must be closely monitored for at least 4 hours from when the last dose was administered. People who have overdosed on a more potent opioid such as fentanyl should be monitored for a longer period.

As the effects of Narcan last a very short time, overdose symptoms may return. For that reason, it’s crucial to call 911 so that the person receives proper medical treatment as soon as possible.

In most cases, people respond to Narcan within 2 to 3 minutes after administration and breathing should return to normal.

If the person doesn’t respond to the medication, it’s possible that the overdose is not due to opioids but some other substance.

Political Controversies About Narcan

Law enforcement officers have often been the first emergency responders to arrive at the scene of an overdose, but they weren’t typically equipped with a drug like Narcan.

In recent years, that has dramatically changed. By 2020, all 50 states alongside the District of Columbia had a form of a naloxone access law. Moreover, many states implemented laws to make naloxone access easier both for first responders and for the general public.11

Legal Risk of Stocking Narcan

Naloxone products such as Narcan have now been made more accessible in each state. In the past, however, several jurisdictions cite fear of being found legally liable for their on-the-job actions as the main reason why law enforcement officials refuse to equip officers with the medication.

One study examined the legal risk associated with law enforcement officials (LEO) administering naloxone. It concluded that the liability risks related to naloxone administration are the same or lower than those of other activities in which LEOs commonly engage.12

At the time, Narcan was a prescription medication that could only be administered by a person holding a valid prescription order. LEO responders did so under what is called a protocol or standing order.

In the case of immunity, the study searched the Westlaw legal database to check whether an out-of-hospital administration of Narcan by LEOs has been the grounds for a lawsuit. Not a single case of a lawsuit was discovered. In nearly all cases, the legal risk to any person who acted in an attempt to save another person’s life was very low. The risk was further reduced if that person is a LEO performing their professional duties.

Does Having Narcan Available Increase Drug Use?

Many states consider Narcan to be a drug that can save lives when administered during an overdose, but one 2018 study suggests that Narcan may be responsible for the continuous increase of opioid abuse. It argues that it does so through:13

Providing a "safety net" and thus encouraging riskier drug use

Saving the lives of people actively using drugs who survive to continue using drugs

According to the study, the broad access of Narcan has led to more emergency room visits and theft related to opioid use with no decrease in opioid-related mortality. The largest increase in opioid-related mortality has been registered in the Midwest, with a 14% increase. The study further suggests that the availability of Narcan has also resulted in more people abusing fentanyl.

However, many people consider the study to lack reliable evidence to claim that the medication caused harm.

General Principle of Harm Reduction and Why It Is a Better Policy

The prevention of an opioid overdose is only possible through the timely administration of a drug like Narcan. The more time that passes, the higher the risk of respiratory depression. Because damage to the brain and other organs increases, the longer the victim remains hypoxic, saving the person who is overdosing depends on how quickly their normal respiration is restored.

Narcan has been administered by paramedics for years, although the first people to arrive at an emergency scene are often law enforcement officials (LEOs) and emergency medical technicians (EMTs).

It’s also estimated that across the US, EMTs outnumber paramedics 3 to 1, while there are ten times more LEOs than paramedics.

With this information in mind, it’s only reasonable that EMTs and LEOs should be equipped with Narcan. When emergency personnel such as EMTs and LEOs have the legal right to carry the medication, the amount of time between the onset of respiratory depression and the administration of Narcan can be reduced.

Overdose Risks and Prevention

Mixing Drugs


Using more than one drug at a time is known as polydrug use, and it’s the cause of most fatal overdoses. Even though combining drugs can intensify the effects, it can also increase  negative consequences. Polydrug use can often lead to:

Heart problems

Brain damage



Liver damage and failure

Suppressed breathing

Respiratory failure

People who are abusing drugs may not understand the risks of mixing different substances. Even combining two prescription drugs can be fatal. Taking more than one prescription drug to self-medicate can lead to a deadly overdose. Adding alcohol to the mix further increases the chances of a lethal outcome.

Common Drug Combinations

A popular combination is “speedball,” which is a mix of cocaine and heroin. Heroin, which is a depressant, and cocaine, a stimulant, can be a deadly combination. When these drugs are taken together, its common for the person to falsely believe the are less intoxicated than they are, leading to taking large amounts of the drug combination. Taking too much heroin can also lead to respiratory failure when cocaine’s effects wear off.

Other overdoses happen when people mix prescription opioids or heroin and alcohol with benzodiazepines.

Taking two stimulants at the same time can also be fatal. For example, taking cocaine and ecstasy at the same time can increase heart rate, increasing the risk of heart attack or stroke.

Prevention Tips

To prevent an overdose due to taking a mix of drugs, a person should:

Only take one drug at a time

Make sure to take fewer amounts of each drug if more than one drug is being taken

Avoid mixing heroin/prescription pills with alcohol

Not take more than one drug when alone. It's safest to have a friend nearby who knows what drugs have been taken and the amount


When a substance has been abused for an extended period, a high tolerance to that substance will develop. People can develop tolerance to both prescription drugs and illicit drugs. High tolerance means that the body will require higher doses of the drug to experience the same effects.

It’s also possible for a person to have a low tolerance to a substance. Low tolerance indicates that a person’s body can only process a small amount of a drug.

Tolerance builds up over time as the substance is used for a long time and in high doses. A person’s level of tolerance also depends on many other factors, such as:

Body weight


Overall health

Immune system


High tolerance can be dangerous. When a high tolerance is developed to a drug, there is a greater risk of overdose as the amount of a drug typically taken increases.

Low tolerance can also be life-threatening. A person’s tolerance can decrease if they take a break from using a drug. When that person starts using that drug again and takes a high dose, they may accidentally overdose.

Prevention Tips

To prevent overdosing due to low or high tolerance, a person should:

Take fewer amounts of a drug if they haven't used it, even if they took a break only for a few days

Make sure to go slow if they're taking a drug after a long period of abstinence

Take smaller amounts if they're sick

Do a tester shot before taking a dose

Opt for snorting a drug instead of injecting it

Drug Quality

Some drugs are purer than others. A drug that has more than a 90% purity, for example, gives a faster, more intense, and longer-lasting high.

Overdoses often happen when a substance within a drug is purer than the person using it anticipates. Even if the person has developed a tolerance for a substance in its diluted form, when they consume that substance in a purer form, the outcome can be death.

The same applies to prescription drugs. Although the contents and the dosage of prescription drugs are apparent, it’s uncertain how strong one type of pill is compared to other similar kinds of pills.

Opioids, due to their potency, have low rates of purity. A lethal dose of fentanyl, for example, is no larger than a quarter of a milligram, so a person can’t use the drug in its pure form without overdosing.

Prevention Tips

To avoid overdosing, a person should:

Test the potency of the drug before taking a full dose

Buy drugs from a dealer that they know is selling high-quality substances

Know the potency and the purity of the drugs they're taking

Take precautions when they switch from taking one type of the opioid pill to another

Danger of Using Drugs Alone


People who are taking drugs are often advised not to do so in isolation. Not taking drugs alone is critical in harm reduction. People who use drugs alone, without a friend who knows what they’re taking and can be monitoring them, are at a much higher risk of fatally overdosing.

Prevention Tips

To try to stay safe, a person should:

Have a syringe or nasal Narcan ready in case they overdose while alone

Leave their door unlocked

Call a friend to check on them

Set up an overdose plan with their friends and family

Age and Physical Health

The risk of an overdose can also depend on the age and the physical health of a person. For example, drug abuse among the elderly is considered to be highly dangerous. People older than 65 have a decreased ability to metabolize drugs and have a higher brain sensitivity to drugs.

Moreover, people of an older age can have other health issues such as cardiovascular diseases or diabetes. Young people who suffer from these illnesses are also at a higher risk of overdose. Liver disease in individuals poses a significant threat to overdosing. A liver that functions poorly is not able to process drugs or alcohol effectively.

People who have been using drugs for a long time are also more prone to overdosing. Although they might have developed tolerance to a drug, their long-term use may have accumulated many illnesses such as viral hepatitis, HIV, or infections.

Another factor that may affect the risk of an overdose is a compromised immune system. If a person’s body is weakened due to an infection, they’re at a high risk of an overdose.


The risk factors for an opioid overdose include:

History of substance use disorders

High prescribed dosage

Male gender

Older age

Multiple prescriptions including benzodiazepines

Mental health conditions

Prevention Tips

If there is the presence of decreased physical health or are older, here are some tips for prevention:

In cases of liver damage, they should avoid using pharmaceuticals with a lot of acetaminophen in them, such as Vicodin. They're more difficult for the liver to break down.

A person shouldn't take large amounts of a drug if they lost weight or are feeling sick, as this can decrease tolerance.

Stay hydrated and eat regularly.

Visit the doctor and let them conduct detailed tests of physical health. Knowing the presence of an illness such as blood pressure or heart disease can help prevent an overdose.

Modes of Administration

A drug can be used in many different ways. It can be swallowed as a pill or sprayed into the nose as a nasal spray. It can be shot into the vein as an intravenous injection or into the muscle as an intramuscular injection. It’s not uncommon for a drug to be inserted into the rectum or injected just under the skin.

People using drugs often crush the contents of a tablet or pill and snort its contents.


If a person takes a large amount of a drug, it can lead to an overdose, regardless of the method of administration.

However, some methods of administration deliver the drug more quickly to the brain and are more likely to create a rush. These methods include smoking and injection.

When a person inhales the smoke, it goes directly to the lungs and is then rapidly absorbed into the bloodstream. That’s why smoking is one of the fastest ways for someone to experience a high.

Injecting a drug into the vein or muscle is another popular method. When a drug is injected into the body, its full effects are felt almost immediately, typically within 3 to 5 seconds.


There are some tips to keep in mind if a person wants to prevent a fatal overdose:

Some methods of administration, such as smoking and injection, are more dangerous than others.

Opt for snorting in cases when using alone or there is a decreased tolerance to a drug.

When switching the method of administration, it's important to remember that the body may not be able to handle the same amount.


The timely administration of Narcan can help prevent an opioid overdose. It does so by blocking opioid receptors from being activated. Narcan comes in several forms, including intranasal, injectable, and auto-injector.

When an opioid overdose happens, more than one dose of Narcan may be required, especially if large amounts of opioids have been taken. The medication is an appropriate response for overdoses of all types of opioids, including fentanyl.

However, it’s not effective in treating overdoses of stimulants, like benzodiazepines, barbiturates, clonidine, GHB, and ketamine.

All 50 states and the District of Columbia have equipped both first responders and the general public with Narcan in an attempt to fight the opioid epidemic. Equipping law enforcement officials and emergency medical technicians with Narcan is a crucial strategy for dealing with the misuse of prescription opioids and preventing opioid overdoses and deaths.

However, Narcan is not a treatment for addiction. Recovery from opioid use disorders is possible with support from an addiction treatment center.

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