A 15 mg tablet of Rivonext is used to lower the risk of heart attack and stroke. One class of medication called an anticoagulant is Rivonext 15mg Tablet. It can stop blood clots from growing larger so your body can eventually dissolve them, even if it doesn't "dissolve" them. Additionally, it will stop new ones from developing. It functions by preventing the body from producing a chemical that aids in blood coagulation. This reduces the possibility of a clot forming inside a blood artery and maintains the free flow of blood throughout your body. Rivonext 15mg Tablet can help prevent or lessen damage from thrombosis, pulmonary embolism, stroke, and other blood vessel blockages.