We do not list all possible known side effects.You may experience a side effect that is not provided here. If you find that you are noticing severe side effects call your doctor or one of our pharmacists for counseling and medical advice. Your doctor will normally balance the benefits of treatment  versus any possible  adverse reactions. Please call us and speak to the pharmacist if you have concerns about buying Xarelto  online. red or dark brown urine fast or irregular heartbeat loss of appetite burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue stomach pain or swelling vomiting of blood or material that looks like coffee grounds increased menstrual flow or vaginal bleeding Fainting chest tightness cough red or black, tarry stools headache pain in the arms or legs red, irritated eyes red skin lesions, often with a purple center chills joint or muscle pain unusual bleeding or bruising hives, itching, skin rash difficult or painful urination bloody stools unpleasant breath odor unusual tiredness or weakness prolonged bleeding from cuts severe headache nosebleeds Blistering, peeling, or loosening of the skin Burning feeling while urinating numbness