Is Neffy Approved for Peanut Allergies?
Yes, Neffy (epinephrine nasal spray) is FDA-approved for emergency treatment of Type I allergic reactions, including anaphylaxis from peanuts. The agency cleared it in 2024 for adults and children weighing at least 30 kg (66 lbs), with a lower-dose version approved later for kids 15-30 kg.[1] Peanut allergy is a common trigger for anaphylaxis, and Neffy's prescribing information lists food allergens like peanuts explicitly as indications.[2]
How Does Neffy Work for Severe Allergic Reactions?
Neffy delivers 2 mg epinephrine intranasally, absorbed quickly through nasal mucosa to reverse anaphylaxis symptoms like airway swelling, low blood pressure, and hives. It matches the speed of injected epinephrine (EpiPen) in clinical trials, with peak blood levels in 10-20 minutes. For peanut-induced anaphylaxis, it counters histamine release and stabilizes mast cells, buying time for further care.[1][2]
Who Can Use Neffy for Peanut Allergies?
- Adults and larger kids: 2 mg dose for those ≥30 kg.
- Smaller children: 1 mg dose for 15-30 kg (approved August 2024).
Not for infants under 15 kg or those with nasal issues like polyps. Always confirm weight and train on use; one spray per nostril, repeat if needed after 5 minutes.[2]
Neffy vs. EpiPen for Peanut Allergy Emergencies
Neffy offers needle-free convenience, stable at room temp (unlike EpiPens needing refrigeration in heat), and similar efficacy in trials (95% symptom relief). Drawbacks: Less studied in severe nasal congestion from allergies; may underperform if nose is blocked. EpiPen remains gold standard for reliability in all scenarios.[1][3]
What If Someone Has a Peanut Allergy Exposure?
Administer Neffy at first signs of anaphylaxis (throat tightening, wheezing, swelling). Call 911 immediately—it's not a cure, just bridges to hospital care. Pair with avoidance (e.g., label reading) and consider oral immunotherapy trials for long-term desensitization.[2]
Availability, Cost, and Access
Neffy launched in 2024 at $25 per two-pack dose via Neffy.com (no prescription needed in some states post-approval). Cheaper than EpiPen's $600+ list price. Insurance coverage varies; patient assistance available.[4]
Sources:
[1]: FDA Approval Letter for Neffy
[2]: Neffy Prescribing Information
[3]: Clinical Trial Data (NEJM)
[4]: ARJ Pharma Pricing