Hi Everyone, am a newbie to all of this. For the past 3 months I have been dealing with acute sinusitis, allergic rhinitis per CT report and a cough with phlegm . Then I went to an allergist. Dr. Did breathing test and I was told that it was a little low I think I saw 77% after inhalation treatment so the Dr. recommended symbicort and Flonase. Also did skin testing on back came back negative . Have follow up to do next round of allergy testing. I currently take metoprolol succinate for HBP and paroxysmal a fib. I read that symbicort could conflict with metoprolol. I started symbicort and my throat has been irritated, headache , feeling jittery , just feeling weird on it. I cut down the dosage , a little better . Not coughing as much anymore and chest tightness is gone. Not sure at this point what my diagnosis will be weather asthma, copd or something else. Does anyone have any knowledge concerning symbicort with beta blockers and side effects? Am 62 and never had anuyhing like this .