it took joel silverman years to become a master dog trainer. but only a few commands to master depositing checks at chase atms. technology designed for you. so you can easily master the way you bank. they represent blood cells. and if you have afib-an irregular heartbeat that may put you at five times greater risk of stroke they can pool together in the heart, forming a clot that can break free and travel upstream to the brain, where it can block blood flow and cause a stroke. but if you have afib that's not caused by a heart valve problem, pradaxa can help stop clots from forming. pradaxa was even proven superior to warfarin at reducing the risk of stroke, in a clinical trial without the need for regular blood tests. and, in the rare event of an emergency, pradaxa is the only oral blood thinner other than warfarin with a specific reversal treatment to help your body clot normally again.