Rivaroxaban

Rivaroxaban treats or prevents certain types of blood clots and reduces stroke risk. While taking rivaroxaban, report any unusual bleeding to your physician.

Rivaroxaban Overview

Reviewed: June 12, 2012
Updated: 

Rivaroxaban is a prescription medication used to prevent certain types of blood clots and strokes. Rivaroxaban can be used in people who are having hip or knee replacement surgery, and for people with an irregular heart rhythm.

Rivaroxaban, a "blood thinner", belongs to a group of drugs called factor Xa inhibitors. Factor Xa is an enzyme required for blood to clot. Rivaroxaban inhibits factor Xa, slowing down blood clot formation.

This medication comes in tablet form and is usually taken once daily, with or without food. For people taking it for atrial fibrillation (irregular heart rhythm), rivaroxaban is taken once daily with the evening meal.

Common side effects include itching, muscle spasms, and bleeding.

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Rivaroxaban Cautionary Labels

precautionsprecautionsprecautionsprecautions

Uses of Rivaroxaban

Rivaroxaban is a prescription medicine used in adults to:

  • reduce the risk of stroke and blood clots in people who have a medical condition called atrial fibrillation. With atrial fibrillation, part of the heart does not beat the way it should. This can lead to the formation of blood clots, which can travel to the brain, causing a stroke, or to other parts of the body.
  • reduce the risk of forming a blood clot in the legs and lungs of people who have just had hip or knee replacement surgery.
  • treat and reduce the recurrence of blood clots in the legs [deep vein thrombosis (DVT)].
  • treat and reduce the recurrence of blood clots in the lungs [pulmonary embolism (PE)].
  • reduce the risk of recurrence of DVT and/or PE in patients at continued risk for recurrent DVT and/or PE after completion of initial treatment lasting at least 6 months.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

 

Rivaroxaban Brand Names

Rivaroxaban may be found in some form under the following brand names:

Rivaroxaban Drug Class

Rivaroxaban is part of the drug class:

Side Effects of Rivaroxaban

Rivaroxaban can cause bleeding, which can be serious, and rarely may lead to death. See "Drug Precautions". Rivaroxaban may cause other side effects. Discuss any side effects with your doctor.

Rivaroxaban Interactions

Tell your doctor about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. Some of your other medicines may affect the way rivaroxaban works. Certain medicines may increase your risk of bleeding. 

Especially tell your doctor if you take:

  • ketoconazole (Nizoral)
  • itraconazole (Onmel, Sporanox)
  • ritonavir (Norvir)
  • lopinavir/ritonavir (Kaletra)
  • indinavir (Crixivan)
  • carbamazepine (Carbatrol, Equetro, Tegretol, Tegretol-XR, Teril, Epitol)
  • phenytoin (Dilantin-125, Dilantin)
  • phenobarbital (Solfoton)
  • rifampin (Rifater, Rifamate, Rimactane, Rifadin)
  • St. John's wort (Hypericum perforatum)

Ask your doctor if you are not sure if your medicine is one listed above.

Know the medicines you take. Keep a list of them to show your doctor and pharmacist when you get a new medicine.

Rivaroxaban Precautions

  • People with atrial fibrillation (an irregular heart beat) are at an increased risk of forming a blood clot in the heart, which can travel to the brain, causing a stroke, or to other parts of the body. Rivaroxaban lowers your chance of having a stroke by helping to prevent clots from forming. If you stop taking rivaroxaban, you may have increased risk of forming a clot in your blood. Do not stop taking rivaroxaban without talking to the doctor who prescribes it for you. Stopping rivaroxaban increases your risk of having a stroke. If you have to stop taking rivaroxaban, your doctor may prescribe another blood thinner medicine to prevent a blood clot from forming.
  • Rivaroxaban can cause bleeding which can be serious, and rarely may lead to death. This is because rivaroxaban is a blood thinner medicine that reduces blood clotting. While you take rivaroxaban you are likely to bruise more easily and it may take longer for bleeding to stop. You may have a higher risk of bleeding if you take rivaroxaban and take other medicines that increase your risk of bleeding.

Call your doctor or get medical help right away if you develop any of these signs or symptoms of bleeding:

  • unexpected bleeding or bleeding that lasts a long time
  • nose bleeds that happen often
  • unusual bleeding from the gums
  • menstrual bleeding that is heavier than normal or vaginal bleeding
  • bleeding that is severe or you cannot control
  • red, pink or brown urine
  • bright red or black stools (looks like tar)
  • cough up blood or blood clots
  • vomit blood or your vomit looks like "coffee grounds"
  • headaches, feeling dizzy or weak
  • pain, swelling, or new drainage at wound sites

Do not take rivaroxaban if you:

  • currently have certain types of abnormal bleeding. Talk to your doctor before taking rivaroxaban if you currently have unusual bleeding.
  • are allergic to rivaroxaban or any of the ingredients in it.

Rivaroxaban Food Interactions

Grapefruit and grapefruit juice may interact with rivaroxaban and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor.

Inform MD

Before you take rivaroxaban, tell your doctor if you:

  • have ever had bleeding problems
  • have liver or kidney problems
  • have any other medical condition
  • are pregnant or planning to become pregnant. It is not known if rivaroxaban will harm your unborn baby.
  • are breastfeeding or plan to breastfeed. It is not known if rivaroxaban passes into your breast milk. You and your doctor should decide if you will take rivaroxaban or breastfeed.

Tell all of your doctors and dentists that you are taking rivaroxaban. They should talk to the doctor who prescribed rivaroxaban for you before you have any surgery, medical or dental procedure.

Tell your doctor about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. Some of your other medicines may affect the way rivaroxaban works. Certain medicines may increase your risk of bleeding.

Rivaroxaban and Pregnancy

Tell your doctor if you are pregnant or plan to become pregnant.

The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.

Rivaroxaban falls into category C. There are no well-controlled studies that have been done in pregnant women. Rivaroxaban should be used during pregnancy only if the possible benefit outweighs the possible risk to the unborn baby.

 

Rivaroxaban and Lactation

It is not known if rivaroxaban crosses into human milk. Because many medications can cross into human milk and because of the possibility for serious adverse reactions in nursing infants with use of this medication, a choice should be made whether to stop nursing or stop the use of this medication. Your doctor and you will decide if the benefits outweigh the risk of using rivaroxaban.

Rivaroxaban Usage

  • Take rivaroxaban exactly as prescribed by your doctor. Do not change your dose or stop taking rivaroxaban unless your doctor tells you to.
  • For people who have:
    • atrial fibrillation: Take rivaroxaban 1 time a day with your evening meal. Stopping rivaroxaban may increase your risk of having a stroke or forming blood clots in other parts of your body.
    • hip or knee replacement surgery: Take rivaroxaban 1 time a day with or without food.
  • Your doctor will decide how long you should take rivaroxaban. Do not stop taking rivaroxaban without talking with your doctor first.
  • Your doctor may stop rivaroxaban for a short time before any surgery, medical or dental procedure. Your doctor will tell you when to start taking rivaroxaban again after your surgery or procedure.
  • Do not run out of rivaroxaban. Refill your prescription of rivaroxaban before you run out. When leaving the hospital following a hip or knee replacement, be sure that you will have rivaroxaban available to avoid missing any doses.
  • If you miss a dose of rivaroxaban, take it as soon as you remember on the same day.
  • If you take too much rivaroxaban, go to the nearest hospital emergency room or call your doctor right away.

Rivaroxaban Dosage

Take rivaroxaban exactly as prescribed by your doctor. Follow the directions on your prescription label carefully. The dose of rivaroxaban is individualized. Your doctor will determine the best dose and length of therapy for you based on the reason you require the medicine, and how well your kidneys function, other medicines you are taking, and other factors.

Atrial Fibrillation
The recommended dose of rivaroxaban is 20 mg taken once daily with the evening meal. The recommended dose for patients with impaired kidney function is 15 mg once daily with the evening meal.
 
Treatment of deep vein thrombosis (DVT) and/or pulmonary embolism (PE)                                                                                          The recommended dose of rivaroxaban is 15 mg orally twice daily with food for the first 21 days, followed by 20 mg orally once daily with food for the remaining treatment.

Reduction in the risk of recurrence of DVT and/or PE in patients at continued risk for DVT and/or PE                                                    The recommended dose of rivaroxaban is 10 mg once daily with or without food, after at least 6 months of standard anticoagulant treatment.

After Surgery
The standard rivaroxaban dose for preventing blood clots in people undergoing knee replacement or hip replacement surgery is 10 mg once daily for 12 days (for knees) or for 35 days (for hips). The first dose is given at least 6 to 10 hours after surgery, once all bleeding is under control. 

 

Rivaroxaban Overdose

If you take too much rivaroxaban, call your local Poison Control Center or seek emergency medical attention right away.

Other Requirements

  • Store rivaroxaban at room temperature between 59° to 86°F (15° to 30° C).
  • Keep rivaroxaban and all medicines out of the reach of children.

Rivaroxaban FDA Warning

WARNINGS: (A) DISCONTINUING RIVAROXABAN IN PATIENTS WITH NONVALVULAR ATRIAL FIBRILLATION INCREASES RISK OF STROKE, (B) SPINAL/EPIDURAL HEMATOMA

A. DISCONTINUING RIVAROXABAN IN PATIENTS WITH NONVALVULAR ATRIAL FIBRILLATION

 Discontinuing Rivaroxaban places patients at an increased risk of thrombotic events. An increased rate of stroke was observed following Rivaroxaban discontinuation in clinical trials in atrial fibrillation patients. If anticoagulation with Rivaroxaban must be discontinued for a reason other than pathological bleeding, consider administering another anticoagulant.

B. SPINAL/EPIDURAL HEMATOMA

Epidural or spinal hematomas have occurred in patients treated with Rivaroxaban who are receiving neuraxial anesthesia or undergoing spinal puncture. These hematomas may result in long-term or permanent paralysis. Consider these risks when scheduling patients for spinal procedures. Factors that can increase the risk of developing epidural or spinal hematomas in these patients include:

  • use of indwelling epidural catheters
  • concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants
  • a history of traumatic or repeated epidural or spinal punctures
  • a history of spinal deformity or spinal surgery

Monitor patients frequently for signs and symptoms of neurological impairment. If neurological compromise is noted, urgent treatment is necessary.

Consider the benefits and risks before neuraxial intervention in patients anticoagulated or to be anticoagulated for thromboprophylaxis.