https://www.epipen.com/hcp/about-epipen-and-generic/safety-and-storage
http://archive.is/7dQOQ#selection-1161.179-1161.191
The FDA-approved label warns that if the liquid in the pen is discolored, it should be discarded: "Epinephrine solution deteriorates rapidly on exposure to air or light, turning pink from oxidation to adrenochrome and brown from the formation of melanin."
AdrenoCrhome + Epipen Sauce for the shill baker