It may sound bit awkward but as they say where there is a will there is a way
A normal human is awake for 14-16 hours a day and after charging water bottles once in the morning we are supposed to be consuming that water throughout the day and for different healings there is suggested 10 minutes gap so even if 4 different combinations have to be taken they will be consumed within an hour
So 4 doses after a gap of 3-4 hours can be easily consumed throughout day