Step1234 and Pro-Actizyme are not medicines. It doesn't matter if you forget or drink it wrong. It won't cause any adverse reaction. Just adjust it next time would be fine! After all, each step has different effects, it is best to follow the correct drinking time.
Step 1 kiwi
Step 2 lychee
Step 3 grape
Step 4 peach
Yes, but it is not recommended to be too close between the two drinks. It is better to be at least 30mins away from Step 1,2,3,4 and Pro-Actizyme.