What is the primary use of Rivaroxaban?

Rivaroxaban is primarily used as an anticoagulant to prevent and treat thromboembolic disorders. It works by inhibiting Factor Xa, an essential component in the coagulation cascade, which helps to reduce the formation of blood clots. This medication is commonly prescribed for conditions such as deep vein thrombosis (DVT), pulmonary embolism (PE), and to prevent stroke in patients with non-valvular atrial fibrillation. The action of rivaroxaban effectively decreases the risk of complications associated with inappropriate clotting.

The other answer choices address different therapeutic areas: lowering blood pressure involves antihypertensive medications, managing chronic pain typically requires analgesics or anti-inflammatory drugs, and reducing cholesterol levels relates to statins or other lipid-lowering agents. None of these are functions of rivaroxaban, which specifically targets clot prevention and management.