I doubt the heat would compromise the meds, I travel a lot for work and have had meds in extreme temp. (Central/South America) and never had any degrade from exposure to heat.I prefer the P@x actually. I had already been using them for a little while before getting a sample of the R0ch3's (10 pk.) Sometimes I wonder if heat mail experiences en route compromises the quality of some meds. There are mixed reviews on so many things, it just seems like a possibility.
The Roche are good, the Pax are just as good for the price when you look at the cost of 90 Pax VS 90 Roche