If you or someone you know takes an opioid medication, your doctor may suggest that you have Narcan available. (Opioids are medications used for pain.)

    Narcan is used in people of all ages if opioid overdose happens or has possibly happened. Narcan is usually given by a caregiver or loved one if they think opioid overdose has occurred.

    After Narcan has been given, 911 or your local emergency number should be called right away. Administering Narcan is not a substitute for emergency medical care for opioid overdose.

    Narcan basics

    Narcan, which contains the active drug naloxone, is classified as an opioid antagonist.

    This medication comes as a nasal spray . Each container of Narcan holds one dose of medication that’s given as a spray into one nostril.

    Narcan is available as a brand-name drug only. There’s no generic form of Narcan available at this time.

    You can purchase Narcan without a prescription. And it’s available at many pharmacies.

    Read on to learn about how Narcan is given, its uses, side effects, and more.

    Narcan is usually given by a caregiver or loved one if someone is affected by opioid overdose .

    Your doctor or pharmacist will explain how Narcan should be given. They’ll also explain how much to give and how often. Be sure to follow their instructions. Below are commonly used dosages of the medication.

    How and when to give Narcan

    Narcan comes as a nasal spray . Each container of Narcan holds one dose of medication that’s given as a spray into one nostril.

    Narcan is given when opioid overdose happens or has possibly happened. For a list of possible symptoms of opioid overdose, see the “ What is Narcan used for? ” section below.

    Keep in mind that each container of Narcan holds a single dose of the medication. If more than one dose is needed, a new container of Narcan must be used for each dose. And the doses should be alternated between the right and left nostrils.

    It’s important that 911 or your local emergency number be called as soon as the first dose of Narcan is given. This is necessary, even if the affected person becomes responsive (alert and breathing normally) after getting Narcan.

    For step-by-step guidelines on how to administer Narcan, visit the drug manufacturer’s website .

    Dosage

    The recommended dose of Narcan, for people of all ages, is one spray into one nostril. The pediatric dosage of Narcan is the same as the drug’s adult dosage.

    One dose of Narcan is given by a caregiver or loved one once every 2 to 3 minutes. It should be given until the person affected becomes responsive or an emergency medical technician (EMT) arrives. Sometimes only one dose is needed. But sometimes several doses of Narcan are needed.

    Even if someone becomes responsive after getting Narcan, their caregiver or loved one needs to stay with them until EMTs arrive.

    There’s no initial dose or maximum dose of Narcan. Instead, one spray of the drug is given into one nostril every 2 to 3 minutes as needed. You can’t give too much Narcan to someone.

    Taking Narcan with other drugs

    Narcan isn’t given with other medications when it’s administered by caregivers or loved ones. But, when EMTs arrive and begin to care for the affected person, they may give other medications with Narcan.

    These other medications may include drugs to help with the person’s breathing.

    Additionally, if someone’s opioid overdose was due to misuse of opioids, their doctor may recommend other medications be used after treatment with Narcan. (With misuse, a drug is taken in a way that it’s not prescribed or intended to be taken.) In this case, these other medications could help prevent future opioid misuse.

    Questions about taking Narcan

    Below, we answer some common questions related to getting Narcan.

    • Will I need to use Narcan long term? No, Narcan is meant to be used only in emergency situations for opioid overdose. It’s not meant to be taken regularly over a long period of time. If you’re taking an opioid medication, you may want to ask your doctor about having Narcan available in case an overdose occurs.
    • Should I take Narcan with food? Narcan can be given on a full or empty stomach.
    • How long does Narcan take to work? Narcan begins working right away. Someone receiving it may become responsive 2 to 3 minutes after the first dose is given to them. But keep in mind that repeated doses of Narcan are sometimes needed.
    Questions for your doctor

    You may have questions about Narcan and your treatment plan. It’s important to discuss all your concerns with your doctor.

    Here are a few tips that might help guide your discussion:

    • Before your appointment, write down questions like:
      • How will Narcan affect my body, mood, or lifestyle?
    • Bring someone with you to your appointment if doing so will help you feel more comfortable.
    • If you don’t understand something related to your condition or treatment, ask your doctor to explain it to you.

    Remember, your doctor and other healthcare providers are available to help you. And they want you to get the best care possible. So don’t be afraid to ask questions or offer feedback on your treatment.

    Find answers to some commonly asked questions about Narcan.

    Can Narcan be given by intramuscular injection or IV?

    No, Narcan isn’t given by intramuscular injection (an injection into your muscle) or intravenous (IV) injection (an injection into your vein). Instead, it’s only given as a spray into your nostrils.

    If you’re unable to receive a sprayed medication in your nostrils, talk with your doctor. They may be able to recommend treatment options for opioid overdose other than Narcan.

    Is Narcan used to treat cocaine or alcohol overdose?

    No, it’s not. Narcan only works to help reverse opioid overdose . It doesn’t help reverse overdose that’s due to alcohol or cocaine .

    If you or someone you know has alcohol or cocaine overdose, call 911 or your local emergency number right away. But don’t give Narcan unless the person may also have an opioid overdose.

    How does Narcan compare with naltrexone?

    Narcan is used for emergency treatment of opioid overdose . Naltrexone, on the other hand, is used for longer-term management of opioid use disorder (OUD).

    With OUD, opioids are misused . (Misuse happens when a drug is taken in a way that it’s not prescribed or intended to be taken.) Naltrexone is often used together with counseling and behavior therapies for OUD.

    To learn more about how Narcan and naltrexone are alike and different, view this article . And talk with your doctor if you have more questions about these two medications.

    Narcan is used for emergency treatment of opioid overdose .

    It’s an opioid antagonist, which means it works by blocking certain receptors (attachment sites) in your body that opioids bind to.

    By blocking these receptors, Narcan helps to reverse symptoms of opioid overdose. For a list of possible symptoms of opioid overdose, see the “ What is Narcan used for? ” section below.

    Once opioid receptors are blocked by Narcan, symptoms of opioid overdose can quickly go away.

    But keep in mind, it’s always important to call 911 or your local emergency number anytime Narcan is given. This is necessary even if the person affected becomes responsive (alert and breathing normally) after getting Narcan.

    How fast does Narcan work?

    Narcan begins working as soon as it’s been given. In fact, someone may become responsive 2 to 3 minutes after their first dose is given. But sometimes, repeated doses of Narcan are needed.

    It’s important that Narcan continue to be given once every 2 to 3 minutes until the person affected becomes responsive or medical help arrives.

    How long does Narcan stay in your system?

    Narcan can stay in your system for several hours.

    The half-life of Narcan is about 2 hours. (Half-life is the time it takes for half of a dose of a medication to be cleared from your body.) It can take 10 hours or so for Narcan to be completely cleared from your body.

    Even though Narcan stays in your body for a while, it’s always important to call 911 or your local emergency number after Narcan has been given. This is because other medications or treatments may need to be given with Narcan to fully treat opioid overdose.

    If you or someone you know takes an opioid medication, your doctor may suggest that you have Narcan available. (Opioids are medications used for pain.)

    Narcan is used in people of all ages if opioid overdose happens or has possibly happened. Narcan is usually given by a caregiver or loved one if they think opioid overdose has occurred.

    Narcan treats opioid overdose by blocking certain receptors (attachment sites) in your body that opioids bind to. Blocking these receptors helps to reverse symptoms of opioid overdose. Once the receptors are blocked, the symptoms may quickly improve.

    Symptoms of opioid overdose may include:

    • unconsciousness (unable to be awakened, even if being shaken or shouted at)
    • slow heart rate
    • low blood pressure
    • slow, shallow breathing, or breathing that has stopped
    • smaller than normal pupils (the dark, center portion of your eye)

    Your doctor may recommend that you have Narcan available if you take a drug that has an opioid in it. Many pain medications contain opioids, including:

    • fentanyl
    • methadone (Dolophine, Methadose)
    • oxycodone (Oxycontin)
    • hydrocodone (Vicodin)

    Narcan is approved for use in both children and adults. The use of naloxone (the active drug in Narcan) has been studied in children of all ages, including newborns. But for newborns, certain medications for opioid overdose may be safer than Narcan. If a newborn needs treatment for opioid overdose, their doctor will recommend the best medication for them.

    Like most drugs, Narcan may cause mild or serious side effects. The lists below describe some of the more common side effects that Narcan may cause. These lists don’t include all possible side effects.

    Keep in mind that side effects of a drug can depend on:

    • your age
    • other health conditions you have
    • other medications you may be taking

    Your doctor or pharmacist can tell you more about the potential side effects of Narcan. They can also suggest ways to help reduce side effects.

    Mild side effects

    Here’s a short list of some of the mild side effects that Narcan can cause. To learn about other mild side effects, talk with your doctor or pharmacist, or read Narcan’s prescribing information .

    Mild side effects of Narcan that have been reported include:

    • increased blood pressure
    • constipation
    • toothache
    • muscle spasms
    • pain in your bones
    • headache
    • dry, stuffy nose, or pain and swelling in your nose

    Mild side effects of many drugs may go away within a few days or a couple of weeks. But if they become bothersome, talk with your doctor or pharmacist.

    Serious side effects

    Serious side effects from Narcan can occur, but they aren’t common. If you have serious side effects from Narcan, call your doctor right away. However, if you think you’re having a medical emergency, you should call 911 or your local emergency number.

    Serious side effects of Narcan that have been reported, and are discussed below in the “Side effect focus” section, include:

    • opioid withdrawal symptoms
    • allergic reaction *

    * Allergic reaction wasn’t reported in clinical studies of Narcan, but it may still happen.

    Side effect focus

    Learn more about some of the side effects Narcan may cause.

    Opioid withdrawal symptoms

    It’s possible to have symptoms of opioid withdrawal after you receive Narcan. Keep in mind that Narcan, which is used for opioid overdose , blocks the effects of opioids in your body.

    Symptoms of opioid withdrawal may include:

    • diarrhea
    • body aches
    • fast heart rate
    • runny nose or sneezing
    • fever
    • goosebumps
    • sweating
    • nausea or vomiting
    • trembling
    • belly cramps
    • feeling restless or irritable
    • increased blood pressure

    What might help

    If you have opioid withdrawal symptoms after getting Narcan, tell your doctor. They can recommend ways to manage your symptoms.

    Some at-home remedies that may help with opioid withdrawal symptoms include:

    • increasing your fluid intake to stay hydrated
    • taking hot baths to help alleviate body aches
    • walking or doing other exercises to help with restlessness and irritability
    • doing an activity you enjoy or watching a favorite movie to help distract you from the symptoms
    Allergic reaction

    Some people may have an allergic reaction to Narcan. While allergic reaction wasn’t reported in clinical studies of Narcan, it can still happen.

    Symptoms of a mild allergic reaction can include:

    • skin rash
    • itchiness
    • flushing (warmth, swelling, or redness, or discoloration in your skin)

    A more severe allergic reaction is rare but possible. Symptoms of a severe allergic reaction can include swelling under your skin, typically in your eyelids, lips, hands, or feet. They can also include swelling of your tongue, mouth, or throat, which can cause trouble breathing.

    Call your doctor right away if you have an allergic reaction to Narcan. But if you think you’re having a medical emergency, call 911 or your local emergency number.

    What might help

    If you receive Narcan, be sure to stay with a caregiver or loved one until emergency medical staff arrives. Also, 911 or your local emergency number should be called anytime Narcan is given.

    Your caregiver or loved one can help watch for any symptoms of an allergic reaction until medical help arrives.

    The cost of drugs can vary depending on many factors. These factors include what your insurance plan covers and which pharmacy you use. To find current prices for Narcan in your area, visit GoodRx.com .

    If you have questions about how to pay for Narcan, talk with your doctor or pharmacist. You can also visit Medicine Assistance Tool to see if they have support options available.

    Talk with your doctor about whether you need to have Narcan available. Your doctor will talk with you about certain considerations for using this drug, such as possible interactions and warnings.

    These and other considerations are described below.

    Interactions

    Taking medications, vaccines, foods, and other things with a certain drug can affect how the drug works. These effects are called interactions .

    There aren’t any known interactions with Narcan and any drugs or supplements. But it’s possible that Narcan could interact with some drugs or supplements.

    Before getting Narcan from your pharmacy, be sure to tell your doctor or pharmacist about all medications you take (including prescription and over-the-counter types). Also describe any vitamins, herbs, or supplements you use. Your doctor or pharmacist can tell you about any interactions these items may cause with Narcan.

    Warnings

    Narcan may not be right for you if you have certain medical conditions or other factors that affect your health. Talk with your doctor about your health history before you take Narcan. Factors to consider include those in the list below.

    • Heart problems. Narcan may cause heart problems, including heart attack . This risk is more common in people who already have heart problems. If you have any heart problems, talk with your doctor to see if Narcan is safe for you.
    • Allergic reaction. If you’ve had an allergic reaction to Narcan, naloxone (the active drug in Narcan) or any of its ingredients, you shouldn’t take Narcan. In fact, the drug is contraindicated (should not be used) in people who’ve had an allergic reaction to it. Ask your doctor what other medications are better options for you.

    Use with alcohol

    There aren’t any known interactions between Narcan and alcohol.

    But, keep in mind that Narcan doesn’t help reverse alcohol overdose . Instead, Narcan only works to help reverse opioid overdose . If you have an alcohol overdose, call 911 or your local emergency number right away.

    And be sure to talk with your doctor about any questions you have related to drinking alcohol and using Narcan.

    Pregnancy and breastfeeding

    It’s not known if Narcan is safe to take while you’re pregnant or breastfeeding.

    If it’s used during pregnancy, Narcan may pass to the unborn baby and cause opioid withdrawal symptoms after the baby is born.

    If you’re pregnant or breastfeeding, ask your doctor if Narcan is safe for you to take.

    It’s important to take medications, including Narcan, exactly how your doctor prescribes them. Using more medication than what’s prescribed can lead to serious side effects.

    But keep in mind, there’s no maximum recommended dose for Narcan, which is used for opioid overdose . Instead, Narcan may be given multiple times as needed, every 2 to 3 minutes. The drug should continue to be administered until the person affected becomes responsive (alert and breathing normally) or medical help arrives.

    If you or someone you know takes a medication that contains an opioid, your doctor may suggest that you have Narcan available. (Opioids are medications used for pain.)

    Narcan is used for emergency treatment of opioid overdose. For more information about medications that contain opioids, check out this article . And to learn about causes, risk factors, and symptoms of opioid overdose, view this article .

    If you have questions about using Narcan while taking an opioid drug, talk with your doctor or pharmacist.

    You may want to ask your doctor questions like these:

    • How can side effects of Narcan be reduced?
    • What are possible symptoms of opioid overdose?
    • Are there treatment options besides Narcan that can be used for opioid overdose?

    For more information about how to use Narcan and where to get Narcan , visit the drug manufacturer’s site.

    Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

    Why did I get Narcan with my prescription?
    Patients often find the offer of a naloxone prescription acceptable. Prescribing naloxone with opioids does not increase liability risk. Naloxone is a prescription medicine that blocks the effects of opioids. It is used to treat opioid overdose by temporarily reversing the effects of opioid medicines and drugs. more
    What drug class is Narcan?
    Naloxone belongs to a class of drugs known as opioid antagonists. It works by blocking the effects of the opioid in the brain. more
    Does Walmart give free Narcan?
    Walmart and Sam's Club are committed to having Naloxone behind the pharmacy counters of our stores and clubs and dispensing naloxone upon request, where allowed by state law. more
    Who pays Narcan?
    First responders who use Narcan include the charge on their bill to the patient or her insurance. In any case, someone is covering the cost. Chemotherapy is a form of cancer treatment. It is not used to revive a cancer patient if he stops breathing, or if his heart fails. more
    What does Narcan cost?
    Generic naloxone can cost between $20 and $40 per dose, while Narcan can cost around $130 to $140 for a kit that includes two doses. more
    Is narcan a steroid?
    Naloxone, sold under the brand name Narcan among others, is a medication used to reverse the effects of opioids.Naloxone. more
    What is Narcan used for?
    NARCANĀ® Nasal Spray is a prescription medicine used for the treatment of a known or suspected opioid overdose emergency with signs of breathing problems and severe sleepiness or not being able to respond. NARCANĀ® Nasal Spray is to be given right away and does not take the place of emergency medical care. more
    Can you Narcan yourself?
    If you experience an opioid overdose, you won't be able to give Narcan to yourself. It's meant to be given by someone else. For more information about Narcan, see this in-depth article on the drug. It's important to note that Narcan is not a substitute for medical treatment. more
    Can you mail Narcan?
    GET NALOXONE MAILED TO YOU If you are a person who uses drugs, have been recently released from jail or prison, or if you are a friend, family member, or partner of of someone who may be at high-risk for an opioid overdose, you can have naloxone discretely mailed to you at no cost. more
    Is Narcan free for addicts?
    Yes, Narcan can be free. Many communities are giving out free Narcan and naloxone to individuals who wish to have a supply of the lifesaving medication. To find local free Narcan, contact your community health services or visit the National Institute on Drug Abuse to find your local free naloxone resources. more
    Where do they inject Narcan?
    Naloxone can be given as a nasal spray or it can be injected into the muscle, under the skin, or into the veins. more

    Source: www.healthline.com

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