Should you stop taking this medication the chances of developing blod clots is high risk. Individuals with atrial fibrillation (a.k.a irregular heart beat) is at risk of forming a blood clot in the heart. From there there is a possibility it could travel to the brain in which could potentially cause a stroke. Xarelto actually lowers chances of experiencing a stroke by assisting to prevent clots from forming. Should you experience unexpected bleeding or bleeding that lasts an excessive amount of time. Call our contracted Pharmacy department at our toll free number: +1 888 646 7749. If you experience any of these symptoms: Nosebleeds that happen often, Unusual bleeding from gums, Menstrual bleeding that is heavier than normal, or vaginal bleeding, Bleeding that is severe or you cannot control, Discolored urine – Red, pink, or brown urine, Bright red or black stools , Cough up blood or blood clots, Vomit blood or your vomit looks like “coffee grounds” Headaches, feeling dizzy or weak Pain, swelling, or new drainage at wound sites Contact your Primary doctor asap!