Rivaroxaban is an oral anticoagulant (blood thinner) in a class of medications called direct oral anticoagulants (DOACs). It works by blocking factor Xa, a key protein in the blood‑clotting process, which helps prevent clots from forming or getting bigger.(Source)

Doctors commonly prescribe rivaroxaban to:

• Treat deep vein thrombosis (DVT) and pulmonary embolism (PE)
• Prevent DVT and PE from coming back after initial treatment
• Reduce the risk of stroke and systemic embolism in people with non‑valvular atrial fibrillation
• Prevent blood clots after hip or knee replacement surgery
• Reduce the risk of major cardiovascular events in certain patients with coronary artery disease (CAD) or peripheral artery disease (PAD)(Source)

Rivaroxaban is taken by mouth, usually once or twice daily, in a dose tailored to the person’s age, kidney function, weight, and medical condition.(Source) Some people only need it for a short time after surgery, while others may need long‑term or even lifelong treatment to manage chronic conditions that increase their risk of blood clots.

When used correctly under medical supervision, rivaroxaban is an effective and generally safe alternative to older blood thinners like warfarin, and it does not require routine blood tests to monitor clotting time.(Source) However, like any powerful prescription medication, it can cause serious harm if misused.