Say hello Halloween night with needle-free neffy.
Does your child experience allergic reactions? Halloween is a night full of excitement, but accidental allergen exposure can take a scary turn. The trick? Always be prepared with neffy, the only needle-free epinephrine nasal spray.
neffy is available in 2 doses:
- neffy 1 mg is for those 4 years and older, who weigh 33 lbs to less than 66 lbs.
- neffy 2 mg is for those who weigh 66 lbs and greater.
Read on to see how you can make sure your child is neffy ready this Halloween.
WHAT IS neffy?
neffy is a nasal spray used for the emergency treatment of allergic reactions, including anaphylaxis, in adults and children aged 4 years and older who weigh 33 lbs or greater.
Please see Important Safety Information below.
Tips & tricks to be neffy ready
- Ask your doctor for a new prescription (or a refill) and pack neffy with you before you head out for a fun night, so that you’re always prepared.
- Act fast in case of accidental exposure. neffy is designed to be easy to use and starts to work in under a minute—delivering the same trusted epinephrine in a needle-free nasal spray.
- Whether they’re trick or treating or heading off to a costume party, neffy’s small size makes it convenient to take with you anywhere you go.
- With temperature flexibility up to 122°F for a few days, no special accommodations are needed if your Halloween festivities fall on a hot night. Simply store neffy at room temperature.*
- With a longer shelf life than needle-injectors, neffy is there for this Halloween and the next. neffy 1 mg has a shelf life of 2 years and neffy 2 mg has a shelf life of 2.5 years.†
- Order a free, optional carrying case for trick or treating and beyond. Clip it onto their costume or bag, just make sure it’s with you or your child.
*Store neffy at room temperature between 68°F to 77°F (20°C to 25°C). Do not freeze. If neffy freezes, the device will not spray.
†From date of manufacture.
neffy may cause side effects so it’s important to talk to a doctor about any medical conditions or medications to determine if neffy is the right option.
Be prepared when an allergic reaction starts; bookmark neffy’s how to use videos for offline viewing.
Pay as little as $25 for at least 4 devices through the neffy Co-Pay Savings Program‡ with commercial insurance,§ if eligible. Ask your child’s doctor to prescribe 2 or more sets of neffy—to take on-the-go trick or treating, home, and school.
‡See Terms and Conditions at neffy.com/savings.
§Determined by your insurance plan quantity limits.
You should not pay more than $199 for neffy.
If you have a high-deductible insurance plan or your plan doesn’t cover neffy, ask your doctor to send your prescription to BlinkRx¶ (our online pharmacy partner) where you will pay no more than $199 for neffy.
¶ARS Pharma does not prefer or recommend one pharmacy over another.
Halloween is just around the corner! Make sure you and your child are ready before the fun starts, both at school and at home.
Talk to your child’s doctor or schedule a telehealth appointment to ask for neffy today.
IMPORTANT SAFETY INFORMATION
What is the most important information that I should know about neffy?
neffy contains epinephrine, a medicine used to treat allergic emergencies (anaphylaxis). Anaphylaxis can be life-threatening, can happen in minutes, and can be caused by stinging and biting insects, allergy injections, foods, medicines, exercise, or other unknown causes.
Always carry two neffy nasal sprays with you because you may not know when anaphylaxis may happen and because you may need a second dose of neffy if symptoms continue or come back. Each neffy contains a single dose of epinephrine. neffy is for use in the nose only.
Use neffy right away, as soon as you notice symptoms of an allergic reaction. If symptoms continue or get worse after the first dose of neffy, a second dose is needed. If needed, administer a second dose using a new neffy in the same nostril starting 5 minutes after the first dose. Get emergency medical help for further treatment of the allergic emergency (anaphylaxis), if needed after using neffy.
Tell your healthcare provider if you have underlying structural or anatomical nasal conditions, about all the medicines you take, and about all your medical conditions, especially if you have heart problems, kidney problems, low potassium in your blood, Parkinson’s disease, thyroid problems, high blood pressure, diabetes, are pregnant or plan to become pregnant, or plan to breastfeed.
Tell your healthcare provider if you take or use other nasal sprays or water pills (diuretics) or if you take medicines to treat depression, abnormal heart beats, Parkinson’s disease, heart disease, thyroid disease, medicines used in labor, and medicines to treat allergies. neffy and other medications may affect each other, causing side effects. neffy may affect the way other medicines work, and other medicines may affect how neffy works.
What are the side effects of neffy?
neffy may cause serious side effects. If you have certain medical conditions or take certain medicines, your condition may get worse, or you may have more or longer lasting side effects when you use neffy.
Common side effects of neffy include: nasal discomfort, headache, throat irritation, chest and nasal congestion, feeling overly excited, nervous or anxious, nose bleed, nose pain, sneezing, runny nose, dry nose or throat, tingling sensation, including in the nose, feeling tired, dizziness, nausea, and vomiting.
Tell your healthcare provider if you have any side effects that bother you or that do not go away after using neffy.
These are not all of the possible side effects of neffy. Call your healthcare provider for medical advice about side effects. To report side effects, contact ARS Pharmaceuticals Operations, Inc. at 1-877-MY-NEFFY (877-696-3339)or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Please see the full Prescribing Information and Patient Information for neffy.
©2025 ARS Pharmaceuticals Operations, Inc. All rights reserved. “ARS Pharma,” the ARS Pharma logo design, “neffy,” and the neffy logo are trademarks or registered trademarks of ARS Pharmaceuticals Operations, Inc. All other trademarks are the property of their respective owners. NEF-US-0770 | 09/2025
