Hi Rhonda,
Ugh, insurance companies.
No, acetylcysteine is the generic for the brand name drug Mucomyst. I have been on acetylcysteine as long as I can remember. Nmw is correct, they are both mucolytics, but not the same drug at all and work differently. I'd give your insurance company a call asap, and ask about this. For the record, I take both Pulmozyme and acetylcysteine.
Good luck to you! This is something that *should* be easily worked out since they are wrong and there, in fact, is no generic for Pulmozyme. But I say *should* because it seems like often dealing with insurance is a nightmare. Blah.
Take care and let us know what you find out,
Autumn 33 w/CF