I've got to take Amoxicillin 500mg x2 twice a day plus Clarithromycin 500mg 1 twice a day to treat H. Pylori. I've bought some Yakult to have as well to help my stomach as I'm worried the antibiotics combination is going to be harsh. But now I am wondering if the Yakult will make the antibiotics ineffective given the reason I need to take them.