I have bronchiectasis, A-Fib, and chronic rhinitis. The beta blocker I am on is controlling the heart rate. I have tried 2 other ones this past year and and severe allergic reaction when it and a nasal spray for chronic rhinitis were started. I am not sure which one caused the severe rash all over my body!!! I am also having a very difficult time with some nebulized medications due to the interaction with Beta Blocker. I do not have an answer. I am still trying and working with cardiologist and pulmonologist to try to tweek for the least side effects possible.