If you take a look at this article, they were able to reduce their PPI dosage by taking an enzyme supplement.Digestive enzymes for gerd
To me this makes sense as when you are taking a digestive enzyme it helps break down the foods which then tells the body it needs less acid for breaking down the foods. This may give you less of a rebound. I'm currently looking into ways of increasing my enzymes naturally to help out with my digestive system in order to come completely off of the pepcid. I have done some research and eating sprouts seems to be a good way to go because they are loaded with a lot of nutrients and enzymes. I just recently started a set of sprouts and they take 3-7 days to grow, so not long at all. In the mean time I have been eating fresh pineapple before and after eating protein as there are natural enzymes within the pineapple that breaks down protein and that has been helping a lot.