The short answer to this question is yes, EpiPens do expire. The expiration date should be stamped on the label on the Epi-Pen.
When picking up your EpiPens at the pharmacy, you should open the package to ensure that the expiration date is at least a year out. Sometimes the pharmacy will give you one that is near it’s expiration date by accident.
You should also keep in mind that the liquid within the EpiPen should be clear. If it is cloudy or discolored, you should properly dispose of it.
Always keep your EpiPen out of extreme temperatures–hot or cold. Prolonged exposure to extremely high or low temperatures could cause the EpiPen to go bad.
You should replace your EpiPen if you accidentally leave it exposed to prolonged excessive heat or cold, or if it is past the expiration date.