jeane, i usually do 2 weeks of Cipro then about 3 weeks on Pepto Bismol (I stay on it as long as I can), and then 2 weeks of Augmentin. Depending on how I am doing, I will try to go back to the PB again before the Cipro. I used to stay on each one for closer to a month before switching, but I can't do that anymore. I threw in Xifaxan a couple months ago. It would probably something good to add to my rotation, but it is sooooo expensive.