@janrn1 Arikayce is an inhaled liposome suspension of amikacin. Amikacin is an antibiotic that has been around for quite some time. When you inhale Arikayce, the liposomes containing the medicine travel into your lungs. Once inside your lungs, they release the medicine to fight MAC/MAI. It is a different yet effective way to fight the disease. Arikayce is in a phase three clinical trial. It is an FDA approved treatment plan in patients who did not respond to a combination antibacterial drug treatment alone. I have been on this med along with two of the Big 3 since June. irene5