I was diagnosed two years ago with MAC. I have been on the three meds - Azithromycin 250 mg once daily, Rifamin 300 mg once daily, and Ethambutol 400 mg twice daily. I changed pulmonologist when it appeared his nurse was calling the shots - her sister had MAC. When I asked about another appt she said “We don’t need to see you, we know what is wrong with you.” We order our meds through Express Script and for the first time I had to get a refill order. It appears the number of times I am to take each has changed drastically without any sputum testing, lab testing, etc.