I was wondering what your thoughts on perishable things like insulin might be in a worse case scenario…. as it needs to be refrigerated at all times, and even if you were to get a large supply. How long could it last as it deteriorates quicker than pills…and pills might be easier to manufacture after a bad scenario whereas insulin would be very difficult to make. Diabetics would probably have a limited life in a TEOTWAWKI ., right? – CWW
JWR Replies: Insulin is indeed a problem for those that envision a long term socioeconomic disruption. However, I challenge the view that in a long term scenario, diabetics will face certain peril. First, many diabetics can minimize or even totally eliminate dependence on daily insulin by altering their diets. I strongly suggest that any SurvivalBlog readers that are diabetic or that have diabetic relatives look into the Weimar Institute’s NEWSTART Program . There are also some herbal alternatives  for diabetics that are not fully insulin dependant. And here are a few others, from another source .
For those that are indeed insulin dependant regardless of dietary changes, I recommend that you stock up on enough injectable insulin for its full potential shelf life. TEOTWAWKI  would of course mean a grid-down  situation. So I also strongly recommend that you get a long term photovoltaic (PV) backup power system to run a compact refrigerator, similar to that described by SurvivalBlog reader Hannibal . If building your own PV system blows your complexity quotient, you can buy a prepackaged system from Ready Made Resources . Or how about getting a propane powered refrigerator and a large propane tank?
One recent development is a new variety of Oral Insulin (Oralin/Oral-lyn) 
As an aside, the American Diabetes Association put together this web page on disaster planning for diabetics . (The link at the bottom of the page on diabetes emergency packs is the most useful tidbit.) Here is one alternative view .