I can't believe all that I am reading. Thank you for your posting! I thought it was all in my head! The doctor prescribed me Advair 500 because I complained of a cough and have had pneumonias in the past. Doctor said it would help prevent the cough getting worst. I took for a few days and experience fast heart beat, chest pain and cramps in my lungs and hands. I also felt mad for no evident reason.Thought I was having a heart attack. I was scared to touch this stuff again and now that I read this, I am throwing it in the garbage!!! My cough as gotten worst since I stopped taking it but I trust there is better medication out there.