I have SIBO and Gastroparesis. I am currently on a 2 week treatment of Xifaxin. Fortunately it costs me nothing with my insurance. I use promethazine and nauzene for nausea. Nauzene is available I expensively over the counter. It has been a life saver for me. I also drink Kombucha daily which helps me feel better and also helps with good bacteria in the gut.