Neffy vs. EpiPen: Similarities and differences

Neffy (epinephrine) and EpiPen (epinephrine) are brand-name drugs used for emergency treatment of severe allergic reactions. Neffy comes as a nasal spray, while EpiPen comes as an auto-injector that’s given in the outer thigh.

This article explains the main similarities and differences between Neffy and EpiPen. If you’re considering taking one of these drugs, discussing this information with your doctor can help you decide whether one of these treatments may be right for you.

Note: For more comprehensive information about these two drugs, you can refer to our Neffy and EpiPen articles.

Here’s information about the generic status for Neffy and EpiPen, as well as details on their active ingredient(s).

Neffy and EpiPen have been approved by the Food and Drug Administration (FDA) for the following in adults and children ages 4 years and older and weighing at least 15 kilograms (kg). Note that one kg is about 2.2 pounds (lb).

Note: For more information about the drugs’ uses, see our articles about Neffy and EpiPen.

Here’s a quick look at the dosage and administration of Neffy and EpiPen for the conditions they treat.

Neffy and EpiPen are both approved in adults and some children for the emergency treatment of severe allergic reactions, including anaphylaxis. Children should be 4 years of age and older and weigh at least 15 kg before using either medication. The dosage of Neffy and EpiPen depends on your weight.

The following table shows the recommended dosages for each drug in milligrams per milliliters (mg/mL). You can give either drug yourself. Training by a healthcare professional before using either drug is recommended.

*Note that EpiPen and EpiPen Jr will be referred to simply as “EpiPen” unless it’s necessary to distinguish between the two products.

Neffy is for use in the nose only. Each nasal spray contains a single dose and should only be used once. Neffy nasal spray should not be primed (pre-spray) or tested before use.

EpiPen is also a single dose device. The medication comes with a trainer pen so you can practice how to use it. The trainer pen doesn’t contain a needle or medication, making it safe for repeated practice.

If symptoms don’t improve or worsen, a second dose of Neffy or EpiPen may be given using a new device. Seek emergency medical help by contacting 911 or your local emergency number right away if additional medication is needed.

For detailed instructions on how to use either medication, visit the manufacturer’s website for Neffy and EpiPen.

Note: For more information about dosage, see our articles about Neffy and EpiPen.

Neffy and EpiPen both contain epinephrine and are used for the emergency treatment of severe allergic reactions. These drugs can cause some of the same side effects, as well as different ones. Some of the side effects reported in clinical trials of these drugs are listed here.

For more details about side effects of these two drugs, see our articles about Neffy and EpiPen. You can also refer to the Neffy prescribing information and EpiPen prescribing information.

The following table lists some of the more commonly reported mild side effects of Neffy and EpiPen. The table may also include mild side effects that are less common but you may have concerns about in some cases.

These side effects may be temporary, lasting a few days to weeks. If the side effects last longer than that, bother you, or become severe, be sure to talk with your doctor or pharmacist.

The following table lists reported serious side effects of Neffy and EpiPen.

If you have serious side effects while using Neffy or EpiPen, call your doctor immediately. If the side effects feel life threatening or you believe you’re having a medical emergency, call 911 or your local emergency number right away.

Both Neffy and EpiPen are used for the emergency treatment of severe allergic reactions, including anaphylaxis. In certain cases, some people may experience an allergic reaction to the medications themselves. This is because some people may be allergic to certain ingredients within these medications. For example, both Neffy and EpiPen contain sodium metabisulfite, which may trigger an allergic reaction in people sensitive to sulfites.

It’s not clear whether this side effect occurred in clinical studies of Neffy or Epipen. However, allergic reactions to both medications are not common.

In general, symptoms of an allergic reaction can be mild or serious.

For mild allergic reaction symptoms, such as a mild rash, call your doctor right away. They may recommend treatments to help manage your symptoms. They’ll also let you know whether you should keep taking the medication.

For severe allergic reaction symptoms, such as swelling or trouble breathing, call 911 or your local emergency number right away. These symptoms require immediate medical care because they can become life threatening. If you’ve had a serious allergic reaction to Neffy or EpiPen, your doctor may recommend taking a different medication instead.

You may wonder whether Neffy and EpiPen are effective for your condition.

Neffy and EpiPen are both prescribed for the emergency treatment of severe allergic reactions, including anaphylaxis. In addition, the American Academy of Allergy, Asthma, and Immunology recommends epinephrine for the emergency treatment of severe allergic reactions, including anaphylaxis. Epinephrine is the active ingredient in both Neffy and EpiPen. (An active ingredient is what makes a drug work.) Therefore, both medications are treatment options for severe allergic reactions.

Talk with your doctor about whether one of these drugs is right for you.

How much Neffy or EpiPen costs depends on the treatment plan your doctor prescribes, your insurance plan, and your pharmacy.

Both Neffy and EpiPen are brand-name drugs. EpiPen also comes in a generic form. However, no generic is available for Neffy. Brand-name medications often cost more than generics. Talk with your doctor or pharmacist to learn about the generic form of either drug.

Neffy and EpiPen may not be right for you if you have certain medical conditions or other factors that affect your health. These drugs have some of the same precautions, but they also have different ones. Some of these precautions are mentioned here.

If any of the medical conditions or health factors in this table are relevant to you, talk with your doctor before using Neffy or EpiPen.

Note: For more comprehensive information about these drugs, you can refer to our Neffy and EpiPen articles.

Switching between Neffy and EpiPen is possible.

If you’d like to know more about switching between Neffy and EpiPen, talk with your doctor. They can give you additional details and help determine the best course of action for your personal situation. Even if two drugs treat the same condition or are in the same drug class, your body can still respond differently.

It’s important that you do not stop, start, or switch any of your drug treatments without your doctor’s recommendation.

Disclaimer: Medical News Today 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 another 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.