What You Need to Know About EpiPen use
By Rod Brouhard, About.com Guide
Updated December 20, 2008
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
The hard plastic case protects EpiPen from accidental discharge in your backpack or purse. It won't be of any use to you during an anaphylactic reaction if it doesn't have any epinephrine left in it.