but jim has afib, atrial fibrillation an irregular heartbeat, not caused by a heart valve problem. that puts jim at a greater risk of stroke. for years, jim's medicine tied him to a monthly trip to the clinic to get his blood tested. but now, with once-a-day xarelto®, jim's on the move. jim's doctor recommended xarelto®. like warfarin, xarelto® is proven effective to reduce afib-related stroke risk. but xarelto® is the first and only once-a-day prescription blood thinner for patients with afib not caused by a heart valve problem, that doesn't require regular blood monitoring. so jim's not tied to that monitoring routine. gps: proceed to the designated route. not today. for patients currently well managed on warfarin, there is limited information on how xarelto® and warfarin compare in reducing the risk of stroke. xarelto® is just one pill a day taken with the evening meal. plus, with no known dietary restrictions, jim can eat the healthy foods he likes. don't stop taking xarelto®, rivaroxaban, unless your doctor tells you to.