How to Use NEFFY for Anaphylaxis
NEFFY (epinephrine nasal spray, 2 mg) delivers epinephrine through the nose to treat Type 1 allergic reactions, including anaphylaxis from food, insect stings, or unknown causes in adults and children weighing 30 kg (66 lbs) or more.[1] It works by constricting blood vessels and opening airways within minutes. Administer as soon of symptoms like hives, swelling, wheezing, or low blood pressure appear—do not wait.
Step-by-Step Instructions for First Dose
- Hold the device upright: Grip the black base with your thumb and index finger. Do not shake.
- Remove the protective cap: Twist and pull off firmly.
- Position the patient: For yourself, sit or stand. For others, place them on their back with head tilted back slightly (about 30 degrees).
- Insert nozzle: Place tip just inside one nostril, aiming slightly outward toward cheekbone. Keep upright.
- Press firmly: Push down hard on the black base to spray. A click sounds, and yellow liquid sprays out. Do not touch the plunger.
- Remove and observe: The used device locks and cannot be reused. Stay with the person.
A second dose may be needed 5 minutes after the first if symptoms persist. Seek emergency help immediately after any use—call 911 or go to ER even if symptoms improve.[1][2]
Using NEFFY in Children (30 kg or More)
Same steps apply. For smaller children, an adult holds their head steady. NEFFY is nasal-only; no IM injection needed. Not approved for kids under 30 kg.[1]
What If NEFFY Doesn't Work Right?
- Nasal issues: If blocked nose, runny, or bleeding, spray into the other nostril. Still works even if some drips out.
- Accidental spray: If it sprays outside nose, it may not deliver full dose—give second device if available.
- Storage mishaps: Keep at 68-77°F (20-25°C); discard if yellow color changes or past expiration. Does not require refrigeration like EpiPens.[2]
NEFFY vs. EpiPen: Key Differences
| Feature | NEFFY | EpiPen |
|---------|--------|--------|
| Delivery | Nasal spray (no needle) | IM injection in thigh |
| Dose | 2 mg fixed | 0.3 mg (adult) or 0.15 mg (child) |
| Ease | No training for needle phobia; portable | Requires thigh jab |
| Cost | Often lower; check GoodRx for ~$500-700 without insurance | ~$600-700 |
| Shelf life | 18 months from manufacture | Similar |
NEFFY avoids injection fears but needs clear nasal passage. FDA approved Aug 2024; first needle-free option.[1][3]
When Does NEFFY Expire or Face Competition?
Patents protect NEFFY until at least 2035 (USP 11,246,738 for nasal formulation).[4] No generics yet; competitors like Teva's generic EpiPen approved but injection-based. Exclusivity ends ~2029.[4]
Common Side Effects and Risks
Patients report nasal irritation, throat pain, headache (10-20% cases). Rare: heart palpitations, high blood pressure. Overdose risk low but monitor. Not for asthma alone.[1][2]
Always have two doses. Train with trainer device from pharmacy.[1]
[1]: NEFFY Prescribing Information (FDA.gov)
[2]: NEFFY Official Instructions (neffy.com)
[3]: FDA Approval Summary (FDA.gov)
[4]: DrugPatentWatch.com - NEFFY Patents