Acetylcysteine
"my mother was taking this drug at 10% with her nebulizer treatment of 3ml albuterol bronchodilator and it was working well. But now hospice has sent the 20% for her to use and it is NOT breaking up the mucus as well. They say that the drug is on backorder for the 10% and she is suffering by what seems to be by using the 20%. I was told by a pulminologist that it must be diluted with a bronchodilator  which is the albuterol but in switching to the 20% I'm not sure what the mixture should be."