I’m 89 years old and I developed a hacking cough when I was 88 years old, so I went on esbreit and had to stop because of side effects. I started again after three days and after my second week I had different side effects. I am going to a gastroenterologist to check my esophagus which was blown up several times in the last five yers. I am going to make an appointment with my pulmonologist for more breath test sand get another CT scan on my lungs. My oximeter holds about 95 at rest .