I have had SIBO and had rifaxamin treatment alone—once about a year ago and I was free of SIBO-D for a year. It came back when I was put on antibiotics for a UTI. Basically anytime I am I am on an antibiotic I get it and cannot get over the diarrhea. Recently I was put on another antibiotic and got SIBO again. I see the nurse practitioner of the bariatric surgery team at Vanderbilt University. I had a gastric bypass in 2018. This time she prescribed rifaxamin right away. Medicare turned it down. But Vanderbilt pharmacists made an appeal to Medicare and they paid for the whole amount. So far, so good. The rifaxamin seems to have worked for now.