What Is Eliquis Used For? AFib, DVT, and Blood Clot Prevention Explained

Eliquis (apixaban) is one of the most prescribed medications in the United States, but many patients who are newly prescribed it have questions about what it actually does and why they need it.

This article explains the main conditions Eliquis treats, how the drug works, and what long-term use means for patients.

How Eliquis Works

Eliquis is an anticoagulant — a blood thinner. It works by inhibiting Factor Xa, a protein in the blood clotting cascade. By blocking this protein, Eliquis prevents blood clots from forming or growing.

This is valuable in a number of clinical situations where the risk of dangerous clots is elevated.

FDA-Approved Uses for Eliquis

1. Atrial Fibrillation (AFib) — Stroke Prevention

Atrial fibrillation is an irregular heartbeat affecting millions of Americans. In AFib, the heart's upper chambers (atria) beat chaotically rather than in a coordinated rhythm. This can cause blood to pool in the heart, forming clots that can travel to the brain and cause a stroke.

Eliquis is prescribed to reduce the risk of stroke in patients with non-valvular atrial fibrillation — the most common type of AFib. It's one of the most widely used medications for this purpose, having largely replaced warfarin in this population due to its easier management and better bleeding profile.

AFib-related strokes can be severe. Blood thinners like Eliquis significantly reduce that risk.

2. Deep Vein Thrombosis (DVT) — Treatment

A deep vein thrombosis is a blood clot that forms in a deep vein, most commonly in the legs. DVTs cause pain, swelling, and redness, but the bigger concern is that a clot can break off and travel to the lungs (see pulmonary embolism below).

Eliquis is used to treat DVT — to prevent the clot from growing and to reduce the risk of it breaking off.

3. Pulmonary Embolism (PE) — Treatment

A pulmonary embolism occurs when a blood clot travels from elsewhere in the body (often the legs) to the lungs. PEs can be life-threatening and require prompt treatment.

Eliquis is used to treat acute PE and to prevent recurrence after the initial treatment period.

4. DVT and PE Prevention After Hip or Knee Replacement Surgery

Joint replacement surgery carries an elevated risk of blood clots forming in the legs due to immobility and disruption of blood flow. Eliquis is prescribed for a defined period after hip or knee replacement surgery to prevent these post-surgical clots.

This is typically a short-term prescription (10–35 days post-surgery), unlike the long-term use prescribed for AFib or recurrent DVT/PE.

How Long Do You Take Eliquis?

It depends on the underlying condition:

• AFib: Usually indefinite (long-term), as the risk of stroke is ongoing
• DVT/PE: Initial treatment is typically 6 months; some patients continue indefinitely if they have ongoing risk factors
• Post-surgical prevention: Short-term, typically 10–35 days

Never stop Eliquis without talking to your doctor. For AFib patients, stopping anticoagulation significantly increases stroke risk.

What Patients Should Know About Long-Term Eliquis Use

Bleeding risk. All anticoagulants increase bleeding risk. Minor cuts take longer to stop bleeding. More serious bleeding events — gastrointestinal bleeding, for example — can occur. Know the signs: unusual bruising, blood in urine or stool, prolonged bleeding from cuts.

No routine monitoring. Unlike warfarin, Eliquis does not require regular blood tests to monitor its effectiveness. This is one of its major advantages over warfarin.

No dietary restrictions. You do not need to avoid vitamin K-rich foods (like leafy greens) while on Eliquis. This is another difference from warfarin.

Drug interactions exist. Some medications — particularly certain antifungals, HIV medications, and other blood thinners — can interact with Eliquis. Always tell your pharmacist and all of your doctors that you take Eliquis before starting any new medication.

Tell everyone you're on a blood thinner. Before any procedure, dental work, or surgery, inform your provider that you take Eliquis. It may need to be temporarily stopped.

What If You Can't Afford Eliquis Long-Term?

Eliquis can cost $600+ per month at retail prices. For patients on fixed incomes or limited insurance, long-term use is a financial challenge.

Multiple assistance programs exist — from the free BMS Access Support program to Medicare Extra Help — that can significantly reduce or eliminate your cost. ClariMeds helps patients navigate these programs. Apply here.