prevention of thromboembolism in atrial fibrillation
"Two weeks ago I was diagnosed with atrial fibrillation and put on medicines including Pradaxa. I have never been on any other blood thinning medicines, so this is all new to me.

Almost immediately I noticed a severe increase in gas, followed a week later by loose bowels. Yesterday I developed heartburn that will not go away even with Tums and Zantac.

I appreciate the suggestions about taking with food and lots of water. I take 150 mg twice a day. I was trying to take 12 hours apart, at about 8 am and 8 pm, but it looks like taking at breakfast and dinner is better. 

I have had an ulcer, hiatal hernia and GERD about 10 years ago that was finally improved by surgery. Sure hate to go back to heartburn again!"