I only used it during my problems last year. The reason I went on it was because my airways were so closed up that the nebs werent doing much so I could get anything up besides the fact that I just couldnt breath. I am not aware of it interferring with the antibiotics, but they might.
For me it caused havic on my sugars. I am not a diabetic, but my sugars were all over the board. And the sweats....OMG I felt like a stuffed pig over an open fire!