EpiPen is the brand name of an auto-injectable device that delivers the drug epinephrine. It is a life-saving medication used when someone is experiencing an anaphylaxis.

Anaphylaxis: is a severe allergic reaction due to insect stings/bites, foods, drugs, or other substances.

Epinephrine acts quickly to improve breathing, stimulate the heart, raise a dropping blood pressure, reverse hives, and reduce swelling of the face, lips, and throat.

So, keep that expired Epipen handy as a backup, you never know when you might need them.