@lilianna I decided yesterday to fill the prescription and try it, but it comes by mail so I don’t have the actual bottle. The prescription reads “ACETYLCYST 20 % SOL FRES”. The instructions say to mix 3ml with albuterol solution to nebulize. My incomplete understanding is that acetylcysteine comes in different percentages which I assume (but do not know) correlates with different strengths and it is to be mixed with albuterol to neb as it can cause bronchospams. If you are interested, I would suggest you discuss the following with your doctor: 1) % of your prescription, is there a lower percentage that may be more tolerable for you; 2) dosage (I note mine is half of yours); 3) and if you are not nebbing mixed with albuterol, would that help. Again, I have yet to use so I have no personal feedback (yet) but will share once I do.