Eliquis vs warfarin: blood thinners compared
Eliquis (apixaban) and warfarin both prevent dangerous blood clots, but they work differently and fit different lives. Warfarin needs regular blood tests and a steady diet; Eliquis needs neither, but costs more and is not suitable for everyone, including people with mechanical heart valves.
Updated October 4, 2026
At a glance
- How it works
- Eliquis
- Blocks clotting factor Xa directly
- Warfarin
- Reduces vitamin K dependent clotting factors
- Monitoring
- Eliquis
- No routine clotting blood tests
- Warfarin
- Regular INR blood tests to adjust the dose
- Diet
- Eliquis
- No special diet
- Warfarin
- Keep vitamin K intake, mainly leafy greens, steady
- How often
- Eliquis
- Twice a day, fixed dose
- Warfarin
- Once a day, dose adjusted to INR
- Generic
- Eliquis
- Not sold as a generic in the US
- Warfarin
- Yes, inexpensive
Eliquis apixaban | Warfarin Coumadin, Jantoven | |
|---|---|---|
| How it works | Blocks clotting factor Xa directly | Reduces vitamin K dependent clotting factors |
| Monitoring | No routine clotting blood tests | Regular INR blood tests to adjust the dose |
| Diet | No special diet | Keep vitamin K intake, mainly leafy greens, steady |
| How often | Twice a day, fixed dose | Once a day, dose adjusted to INR |
| Generic | Not sold as a generic in the US | Yes, inexpensive |
Who usually takes which
For atrial fibrillation not caused by valve disease, and for treating or preventing deep vein thrombosis and pulmonary embolism, guidelines generally prefer newer anticoagulants such as Eliquis because they need no INR monitoring and cause less bleeding in the brain. Warfarin remains the choice for people with mechanical heart valves and for some other conditions, such as certain forms of antiphospholipid syndrome, where newer drugs have not worked as well.
Interactions and reversal
Warfarin interacts with many medicines, including common antibiotics and antifungals, and with changes in diet, which is why INR tests are frequent. Eliquis has fewer interactions, though strong CYP3A4 blockers and some seizure medicines affect it. Both raise bleeding risk with aspirin, anti-inflammatories and SSRIs. Warfarin can be reversed with vitamin K and clotting factor products, and Eliquis has a specific reversal agent used in hospitals.
Cost
Warfarin is an inexpensive generic, though the cost of INR testing adds up. Eliquis has no US generic on sale, so its cash price is high; Medicare’s negotiated price for Eliquis has applied in Part D since January 2026, and the manufacturer runs savings programs for commercially insured patients.
Missed doses and procedures
A missed Eliquis dose can be taken the same day before returning to the usual twice-daily times. A missed warfarin dose is taken the same day only, and your anticoagulation clinic should hear about any missed day. Both need a plan from your prescriber before surgery or dental work, and neither should be stopped without one.
Questions for your prescriber
- Is a newer blood thinner suitable for my condition, or do I need warfarin?
- How would switching work, and how do we avoid a gap in protection?
- Which of my other medicines and supplements could interact?
Already have a prescription?
Upload it and licensed pharmacies respond with their own cash price. You choose, and pay the pharmacy.
Read more
Sources
- DailyMed, Eliquis prescribing information
- DailyMed, warfarin prescribing information
- CMS, Medicare drug price negotiation
Written by the Script Unlock editorial team from the sources above. It is general information, not advice for you or your pet; your prescriber decides which medicine is right.
Script Unlock is a marketplace that lets licensed pharmacies quote a cash price on your prescription. It does not prescribe, dispense or sell medication, does not process patient payments, and does not give medical advice. Always follow the instructions of your prescriber and pharmacist and read the medication guide supplied with your medicine.