How long does Neffy (epinephrine) last after opening or receiving it?
Neffy is a single-use nasal epinephrine product. The shelf life depends on the exact Neffy formulation (and sometimes the batch), and it is shown on the carton and the device label as an expiration date. Follow that printed date for safe use.
What is Neffy’s shelf life before it’s used?
Before use, Neffy’s usable period is the shelf life printed on the packaging (expiration date). If the expiration date has passed, it should not be used.
How should Neffy be stored to keep it within shelf life?
Neffy shelf life assumes the device has been stored according to the manufacturer’s storage instructions on the box and label. If stored outside those conditions, the device may not perform as expected even before the printed expiration date.
What happens if I use Neffy after the expiration date?
Using an expired epinephrine product can mean the drug may not work as intended in an emergency. In that situation, treat the event as an emergency and use the best available epinephrine option you have, then seek urgent medical care.
Where can I find the exact shelf-life/expiration date for my Neffy?
Check the expiration date printed on:
- the outer carton
- the device label
If you share the expiration date (or a photo of the label text), I can help you interpret where it appears and whether anything else on the label suggests storage limits.