Neither I nor my immediate family need this item, but I think it would be good to have anyway, just in case.
http://www.askaprepper.com/get-free-epipens/Note: I am not giving medical advice and expect you to do your own research on this. I will note that stress can do some unexpected things to those who are not "prepared"...
[edit] I have to disagree with the author's concept of "free". Somebody else is paying for this item, but it is certainly not free, or even lower cost.
Unfortunately, the problem with this item is similar to that of insulin. It is hard to produce and, for some people, a necessity for life.