Rivaroxaban is used to treat and prevent blood clots [1]. It functions as a direct factor Xa inhibitor, a type of anticoagulant [2].
What conditions does rivaroxaban treat?
Rivaroxaban is prescribed for several conditions related to blood clotting. It is used to prevent stroke and systemic embolism in patients with non-valvular atrial fibrillation [3]. It also treats deep vein thrombosis (DVT) and pulmonary embolism (PE), and reduces the risk of recurrent DVT and PE [3]. Additionally, rivaroxaban is used to prevent DVT and PE in patients who have undergone hip or knee replacement surgery [3].
How does rivaroxaban work?
Rivaroxaban works by directly inhibiting factor Xa, a critical enzyme in the blood coagulation cascade. By blocking factor Xa, rivaroxaban prevents the conversion of prothrombin to thrombin, thereby reducing the formation of fibrin and the subsequent development of blood clots [2][4].
How long does it take for rivaroxaban to work?
Rivaroxaban begins to work relatively quickly. Its peak plasma concentration is reached within 1 to 3 hours after administration, and its anticoagulant effect can be observed shortly thereafter [5].
What are the potential side effects of rivaroxaban?
The most significant risk associated with rivaroxaban, like other anticoagulants, is bleeding [3]. Side effects can range from mild bruising and nosebleeds to more severe internal bleeding [6]. Other reported side effects include dizziness, headache, fatigue, and gastrointestinal issues [6].
What happens if I miss a dose of rivaroxaban?
If a dose of rivaroxaban is missed, it should be taken as soon as the patient remembers, unless it is almost time for the next scheduled dose. The patient should then continue taking the medication at the regular time. It is important not to double up on doses to make up for a missed one [7].
When does the patent for rivaroxaban expire?
The patent landscape for rivaroxaban is complex, with multiple patents covering different aspects of the drug and its uses. Information on specific patent expiry dates can be found on resources like DrugPatentWatch.com [8]. Generally, compound patents often expire around 20 years from their filing date, but subsequent patents related to manufacturing processes, formulations, or new indications can extend market exclusivity.
Who manufactures rivaroxaban?
Rivaroxaban is marketed by Bayer and is sold under the brand name Xarelto [9].