Medical Editor: Jay W. Marks, MD. A couple of years ago an episode of the popular TV series Grey's Anatomy featured a woman with two uteruses (or uteri). This unusual condition does, in fact, occur as a result of abnormal fetal development.
Currently, EpiPens expire 18 months from date of manufacturing. Facing criticism for the drug's rapidly rising price, Bresch said the company hopes the expiration date can be extended to a minimum of 24 months.
Such syringes should be disposed of as medical waste in a sharps container. â¢ Unused Epinephrine (e.g., unopened syringes or EpiPens that are still fit for their intended purpose): EpiPens typically have a shelf life of 20 months, but schools may choose to conduct yearly clean-outs of stored medications.