I am on 75mg twice daily of Pradaxa and noticed that most people are put on 150 mg twice daily. I don't have any renal failure that I know of but have had lots of kidney stones and recently have several lipotripscy procedures to remove them. Didn't realize most people were on 150mg twice daily until I started checking. But if 75 mg works to keep stroke away seems better to have only half the dose as I don't like having to take it anyway. Was on daily aspirin for stroke control and Nattokinease but Doc now says I need more. I have A fib and am a 67 year old female. Is anyone here on 75 mg of Pradaxa?