In 2013 and 1 yr later, in 2014, I had a TIA. As a result, after the carotid artery check, my doctor put me on plavix 75 mg and lipitor 10 mg. My GI doctor asked me why I was on the medication, and when I told him, he suggested I could accomplish the same thing with a daily aspirin. Is that correct? Secondly, while applying to change my Medicare Supplement coverage, I was turned out because I take Plavix, which I m told is new and industry-wide. Can you advise on this issue?