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Rivaroxaban (Xarelto) Uses, Side Effects & Dosage

What is rivaroxaban, and how does it work (mechanism of action)?

Xarelto is an oral anticoagulant (blood
thinner) that is used to prevent and treat blood clots. Blood clots formed in
the heart are dangerous since they can travel to the brain and cause a stroke.
Similarly, blood clots formed in the legs or lungs can be equally life
threatening if not treated. Xarelto is a selective inhibitor of factor Xa,
an enzyme necessary to form blood clots. It reduces the ability of blood to
clot. The FDA approved Xarelto in July, 2011.

What brand names are available for rivaroxaban?


Is rivaroxaban available as a generic drug?


Do I need a prescription for rivaroxaban?


What are the uses for rivaroxaban?

Xarelto is a prescription medicine used to:

  • reduce the risk of stroke and blood clots in patients with atrial fibrillation not due to a heart valve problem,
  • treat and reduce the risk of deep vein thrombosis (DVT, blood clots in the veins of the legs) and pulmonary embolism (PE, blood clots in the lungs) and
  • reduce the risk of blood clots in the legs and lungs of patients who have just had hip or knee replacement surgery.
  • in combination with aspirin, is indicated to reduce the risk of major cardiovascular events (cardiovascular (CV) death, myocardial infarction (MI) and
    stroke) in patients with chronic coronary artery disease (CAD) or peripheral artery disease (PAD).


Atrial fibrillation is a(n) …
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What are the side effects of rivaroxaban?

The most common side effect of Xarelto is bleeding. The
risk of bleeding is higher when Xarelto is taken with medicines such as
aspirin or aspirin-containing products,
nonsteroidal anti-inflammatory drugs
(NSAIDS), warfarin (Coumadin, Jantoven), heparin, clopidogrel (Plavix), and
other medicines used to prevent or treat blood clots.

Some rare but serious cases of bleeding and paralysis have been reported with
the use of Xarelto in patients undergoing spinal or epidural procedures.
Risk is highest in patients who have problems with their spine, use indwelling
epidural catheters, have had spinal surgery, or use other medicines that prevent
clotting or make them more likely to bleed.

Other common side effects of Xarelto include:

Serious side effects of Xarelto include:

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What is the dosage for rivaroxaban?

  • To reduce the risk of stroke in nonvalvular atrial fibrillation, patients
    with creatinine clearance (a measure of kidney function) >50 ml/min should be
    given 20 mg once a day with the evening meal. (Xarelto is better absorbed if
    it is given with food.)  Patients with creatinine clearance between 15 to
    50 ml/min should be given 15 mg once a day with the evening meal.
  • To treat blood DVT or pulmonary embolism, 15 mg is administered by mouth twice daily with
    food for the first 21 days, followed by 20 mg once daily with food for 6 months.
  • To reduce the risk of recurrence of DVT or pulmonary embolism, 20 mg should be administered
    by mouth once daily with food.
  • To prevent DVT following hip replacement surgery, 10 mg is administered by
    mouth once daily for 35 days.
  • To prevent DVT following knee replacement surgery, 10 mg is administered by
    mouth once daily for 12 days.
  • When switching from warfarin (Coumadin) to rivaroxaban, warfarin should be
    stopped and then rivaroxaban started as soon as the international normalized
    ratio (a measure of the effects of warfarin) is < 3.0.
  • When switching from blood thinning medicines other than warfarin to
    rivaroxaban, rivaroxaban should be started up to 2 hours before or at the time
    of the next scheduled evening dose.
  • Use of rivaroxaban is not recommended in patients with moderate (Child-Pugh
    B) and severe (Child-Pugh C) liver disease or another type of
    liver disease
    associated with blood disorders.
  • To avoid serious side effects rivaroxaban
    should not be used in patients with significantly reduced kidney function
    defined as creatinine clearance <30 ml/min.
  • Patients who are having difficulty swallowing whole tablets can crush the 10
    mg, 15 mg, and 20 mg tablets and mix with applesauce immediately before use.
  • Note: While the 15 and 20 mg tablets should be taken with food, the 10 mg
    tablets can be taken with or without food.

Which drugs or supplements interact with rivaroxaban?

The CYP3A4
liver enzymes and P-glycoprotein (P-gp) drug transporter systems
are primarily responsible for metabolizing and removing Xarelto from the
body. Taking Xarelto with medicines that alter the activity of both the
CYP3A4 enzymes and P-gp drug transporters may affect blood levels of Xarelto.
Xarelto should not be taken with:

Xarelto should not be used with other blood thinners due to the increased
risk of bleeding.

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Is rivaroxaban safe to take if I’m pregnant or breastfeeding?

  • Due to the lack of conclusive safety data, Xarelto should be
    used in
    pregnancy only if the potential benefit justifies the potential risk to
    the fetus. Xarelto is classified as FDA pregnancy risk category C (animal
    studies show harm but there are no adequate studies in humans).
  • It is not known if Xarelto is excreted in breast milk.
    Because many drugs enter human milk and have the potential of causing harm to
    the nursing baby,
    Xarelto should be used cautiously in nursing mothers.

What else should I know about rivaroxaban?

What preparations of rivaroxaban are available?

Oral tablets: 10, 15, and 20 mg.

How should I keep rivaroxaban stored?

Tablets should be stored at room temperature, between 15 C to 30 C
(59 F to 86 F).

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