try both - see what it does for a few days, you don't HAVE to stick to one or the other, it's about how you feel....
I too was on an HP inhibitor for a hiatus hernia...having them at different times of the day doesn't bother me...but I know if I don't get the potassium in right after the ip shake then it bothers my tummy. I just have a friend who had to switch up her potassium because it bothered her tummy that's all.