My son just passed the 6 month mark and is now definitely on the drug. I have noticed what I think is a slight increase in his cough, but nothing out of the ordinary. Also, he just blew 98 and 100% on his pft's. His pft's prior to getting involved in the trial varied, but were generaly good (unless he was just getting over a cold). It does seem they have increased some. This might be just coincidence, but he seems to be eating more and the variety of foods he likes has increased. Have you notived any change in your children?
Sean