Hi, I was diagnosed with MAC about 10 years ago and the doctor just started me on the 3 drug cocktail of azithromycin, rifampin and ethambutol every day. I have only been on the drugs about 19 days but the side effects have all but incapacitated me. Does anyone know if the body adjusts to the drugs and how long it takes before the drugs work? My doctors never mentioned any side effects, only said the course of taking the medicine was 9 months to a year. Thank you!