@jr2366 welcome to this knowledgeable and caring group. I am sorry you were diagnosed with MAC but glad you found Mayo Connect. I don’t know much, but I know Arikayce is taken after other treatments didn’t work or the patient was unable to tolerate the Big 3 as the medications are called. Arikayce requires training with a nurse and is very expensive. I have never heard of someone being “ put” on Arikayce. It’s a big deal! I had to fill out paperwork with my ID doctor and be ok’d by the company for the trial. And then I had to be be trained virtually by a nurse on how to use it. You said your doctor “put” you on it. Are you seeing an ID doctor? I read your posting like four times to make sure I read it correctly. When I was first diagnosed with MAC I went to a pulmonologist and then an infectious disease doctor. I am perplexed. Do you have symptoms? Again- welcome. You will find lots of answers here. irene5