Home > Stroke > Reducing the risk of stroke in AFib Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Jul 30, 2011 by Info4YourLife, Views: 4210 Pradaxa or Pradax (in Canada) is a new medication that lowers the risk of stroke in people with atrial fibrillation. Previously, only coumadin or warfarin was available for this. Now Pradaxa, which is easier to take because you don't have to check blood tests, is available.