I started taking probiotics when I was first diagnosed with MAC. I mentioned it to my doctor. He told me it was unnessary to take them as these antibiotics did not affect the bacteria in the bowel. So, I did not and have had no problems with that. I was somewhat nauseated at first and had no appetite. It does get better. Maybe if you take them at different times it would help. I did that for a while and finally started taking them all the first thing in the morning. I I was, however, given Rifabutin instead of Rifampin. I have
not seen where anyone else took Rifabutin. I am 6 mos.off the treatment and Sputum culture is still negative. I’m not sure why my doctor prescribed Rifabutin instead of Rifampin, but I have done well after the first few months. Try to find what works for you and rest as needed until you can tolerate the medicine. We are all different.