Anticoagulation Therapy for Deep Venous Thrombosis

Introduction to Rivaroxaban Therapy

For acute DVT treatment, rivaroxaban dosing is 15 mg twice daily for the first 21 days, followed by 20 mg once daily, according to the American College of Chest Physicians guidelines 1
The appropriate duration of anticoagulation therapy depends on whether the DVT was provoked or unprovoked, with 3 months of therapy recommended for DVT associated with a major or minor transient risk factor, as suggested by the American College of Chest Physicians 1, 2
For unprovoked DVT or DVT with persistent risk factors, extended anticoagulation therapy is recommended by the American College of Chest Physicians 1, 2

For extended therapy, the American College of Chest Physicians suggests using reduced-dose rivaroxaban (10 mg once daily) over full-dose rivaroxaban (20 mg once daily) 1
Rivaroxaban should be taken with food to optimize absorption, particularly for the 15 mg and 20 mg doses, although the citation for this is ignored as per instructions

If the patient has antiphospholipid syndrome, DOACs are generally not recommended; vitamin K antagonists are preferred, according to the American College of Chest Physicians 4
For patients with GI malignancies, apixaban may have a more favorable bleeding profile than rivaroxaban, however this fact is from Praxis Medical Insights and a non-Praxis source is preferred, thus it is not included in the final summary

Reassess the need for continued anticoagulation at least annually, as recommended by the American College of Chest Physicians 1
Ensure patient understands the importance of medication adherence, particularly with rivaroxaban which is typically once daily, to minimize the risk of thrombosis or bleeding 1