i have severe fixed asthma (it became that way because it wasn't adequatley treated when i was younger) which causes me much lower percent usage of my lungs then i should have due to scar tissue. i was told that severe lung problems can cause heart failure, so i take laxex which drains extra fluid around the heart and lungs that stays there because of the lung problem. when i take them and urinate very often my wheezing goes away. ask your doctor about that, i would think when you get new lungs everthing including your heart will work much better and you probably won't wheeze