I am 85 years old. Have had afib since 2013 and was prescribed Multaq which I am still taking. I was diagnosed with Bradycardia a year ago and had a pacemaker implanted. I am concerned about taking Multaq for a prolonged period. I discussed this with my cardiologist, but he does not want to change my medication. My yearly checkups with my primary doctor are always good except for eGFR which is steadily getting lower. My doctor said it is because of my age and that I am probably not drinking enough water, but I wonder if the Multaq is destroying my kidneys. Has anyone been on Multaq for a long time?