September temperatures for medicines?

Hi LesBrass, by starting a thread, you've taken the first of many Camino plunges!

I don't have any experience with carying medications like you describe, but I can't tell you how many times my special treat chocolate bar became a puddle after a day in the backpack. Maybe placing it deep in the middle of the pack will work, but I think I'd test this at home before leaving if I were you. Remember you are likely to be walking (if you're walking the Frances, at least) with the sun shining on your back for most of the day. I'm wondering if storing it in a small pack in front of your body would make a better temperature more likely. September has been a very hot month in recent years, so I wouldn't count on cool breezes while walking. Good luck with this, Laurie