Xarelto vs. Coumadin

See how Xarelto and Coumadin compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Xarelto is a newer blood thinner that does not require routine blood testing, while Coumadin has been used for over 60 years but needs regular INR monitoring.

  • Both drugs treat blood clots and atrial fibrillation, but only Coumadin is approved for people with mechanical heart valves.

  • Xarelto typically costs more per month than Coumadin, which is widely available as an inexpensive generic.

Xarelto vs. Coumadin Drug Summary

Xarelto

Xarelto (rivaroxaban) is a factor Xa inhibitor that thins the blood to help prevent strokes, blood clots, and pulmonary embolism. It comes as a tablet taken once or twice daily depending on the condition being treated. Unlike older blood thinners, it does not require routine blood testing.

Coumadin

Coumadin (warfarin) is a vitamin K antagonist that has been used to prevent and treat blood clots since the 1950s. It is taken as a once-daily tablet, with the dose adjusted based on regular INR blood tests. It is also the standard anticoagulant for people with mechanical heart valves.

Xarelto vs. Coumadin Side Effects

Xarelto

Most common
Major bleeding (3.6%/year)
Pruritus (1% to 10%)
Rash (1% to 10%)
Back pain (common)

Coumadin

Most common
Hemorrhage (common)
Nausea (common)
Vomiting (common)
Diarrhea (common)

Xarelto vs. Coumadin Dosage

Xarelto

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 10 mg once daily At the start
Maximum dose 20 mg once daily Day 22 onward
Dose changes 3 increases Every 21 days

Coumadin

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 2 to 5 mg once daily Days 1-5
Maximum dose 2 to 10 mg once daily If needed
Dose changes 1 increase As tolerated

Xarelto vs. Coumadin Indications

Xarelto

Xarelto is FDA-approved to reduce stroke risk in atrial fibrillation, treat DVT and PE, and prevent their recurrence. It is also used to prevent blood clots after hip or knee replacement surgery and in certain hospitalized medical patients. It is not approved for people with mechanical heart valves.

  • Stroke prevention in atrial fibrillation

  • Treatment of DVT and PE

  • Prevention of DVT/PE recurrence

  • Prophylaxis after hip or knee replacement

Coumadin

Coumadin is FDA-approved to treat and prevent venous thrombosis, pulmonary embolism, and clot-related complications from atrial fibrillation. It is also the standard anticoagulant for people with mechanical heart valves and for reducing repeat events after a heart attack. It has been used for these purposes for decades.

  • Treatment of venous thrombosis and PE

  • Stroke prevention in atrial fibrillation

  • Prevention of clots with mechanical heart valves

  • Reduced risk of death or recurrent heart attack

Xarelto vs. Coumadin Pros and Cons

Xarelto

Xarelto offers predictable, fixed dosing without the need for routine blood monitoring, making it easier to fit into daily life. It costs more out of pocket than Coumadin and is not an option for people with mechanical heart valves.

Pros

  • No routine blood testing needed

  • Fewer food and drug interactions than warfarin

  • Simple fixed dosing without regular adjustments

  • Specific reversal agent (andexanet alfa) available

Cons

  • Not approved for mechanical heart valves

  • Roughly $440 to $650 per month without insurance, before savings programs

  • Reversal agent is newer and less widely stocked than vitamin K

  • Boxed warning for spinal or epidural bleeding with certain procedures

Coumadin

Coumadin has decades of real-world use and costs far less than Xarelto, but it demands regular INR checks and careful attention to diet and other medications. It remains the anticoagulant of choice for people with mechanical heart valves.

Pros

  • Approved for mechanical heart valves, unlike Xarelto

  • Roughly $40 to $100 per month without insurance

  • Decades of clinical experience across many populations

  • Antidote (vitamin K) is inexpensive and widely available

Cons

  • Requires regular INR blood test monitoring

  • Many food and drug interactions to manage

  • Narrow therapeutic index needs frequent dose changes

  • Genetic differences can affect dosing needs

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