I am also taking Warfarin. I was not able to take the newer drugs Eliquis, etc. My lung doctor had me try Anoro & Stiolto, both of which made my AFIB worse. I was told that albuterol was the culprit as most of inhalers have a high content, except for Spiriva. A regular physician suggested the allergy test. Turns out I’m allergic to 17 different things. I haven’t taken any new meds since the inhalers. My shortness of breath has been the same except several times last week, I had to use the ProAir, but if I use it very often it triggers my AFIB ??