I have had AFib for many years. I am a 78 yr old male have a pacemaker and had an ablation about a year ago, am on warfarin. The end of March 2017 I became sick and was given a chest x-ray. Dr. thought I might have pneumonia, turned out I had acute bronchitis. I was prescribed Biaxin and prednisone. Prior to taking these meds I was doing quite well. When I had device checks every 3 months it would indicate that I had only had 3 or 4 events that lasted like 8 seconds. After taking the Biaxin and prednisone I started having a real bad breathing problem and could barely walk from the front room to the kitchen. I went to see my nurse practioner, I live in the USA, she had blood work run and it turned out my hemoglobin level was down to 6.2. I was given a transfusion which brought it up to 7.1. I have an appointment with a hematologist on June 14th. I asked could the Biaxin and cause a bleeding ulcer she advised me that this is the medication that is actually given for bleeding ulcers. I guess my question would be for Dr. Gupta if e has time. Could this combination of Meds cause this type of problem. I'm at a loss and feel terrible when prior to I was feeling real good.