 [ Symptoms ] do women in their 20s need cosmetic surgery for aging [ Disease ] water has a ph of 7 i would not be drinking a substance that has a ph of 2 5    very acid or even 9 5  highly alkaline i am not sure what kind of filter is doing this of course your stomach is highly acidic anyway i really do not know if acidic or alkaline water will effect your medications namely since i do not know what medications you are taking refer this question to an expert    your pharmacist someone who knows what you are taking or any any of these drugs are ph dependent for absorption this is a good question i am sorry that i do not have a good answer