I've been on hypertonic saline for 5 mos now. It costs me around $40 a box, and I get it from the CF pharmacy. I alternate my hypertonic saline with Tobi (which I am on every other month.) It is not true that you can't be on hypertonic saline and pulmozyme! When they originally did the clinical trials of hypertonic saline, they were alternating it with pulmozyme for cost purposes. But, there isn't any reason why you can't be on both. I'm not really sure if my case is unusual, but since I have been on hypertonic saline, my lung function has been better than it has been in prob 5 yrs! Before I went on hypertonic saline, my lung function was in the low 70's when well. My first dr's visit after I was on hypertonic saline, my lung function was 83%! Better yet, when I went most recently it was up to 87%! Usually, I need IV antibiotics every 3-5 months. However, now I haven't needed IV's for over 8 mos! Like I said, I don't know if anyone else has reacted this well to hypertonic saline, but it has been like a miracle for me. I have never reacted this drastically to a medicine before, not even pulmozyme. So to make a short story long, I think it worth talking to your doctor about.