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Two medicines, side by side

Apixaban vs heparin

Apixaban and heparin are both labeled for atrial fibrillation and blood clots (DVT and PE). Drugs@FDA records approvals of apixaban since 2012 and of heparin since 1939. Pharmacies paid $5.52 per Eliquis 5 mg tablet and $1.18 per mL (Heparin sodium 5,000 unit/mL vial) (NADAC, October 7, 2026); the strengths differ and one is a brand and one a generic, so the two prices are not like for like. In FDA's classes, apixaban is a factor xa inhibitor and heparin an unfractionated heparin.

Check it at the source: the apixaban FDA label on DailyMed (effective April 24, 2026); the heparin FDA label on DailyMed (effective November 28, 2025).

Highlights of the apixaban record

Apixaban (Eliquis) · label of April 24, 2026

Boxed warning

(A) PREMATURE DISCONTINUATION OF ELIQUIS INCREASES THE RISK OF THROMBOTIC EVENTS (B) SPINAL/EPIDURAL HEMATOMA (A) PREMATURE DISCONTINUATION OF ELIQUIS INCREASES THE RISK OF THROMBOTIC EVENTS Premature discontinuation of any oral anticoagulant, including ELIQUIS, increases the risk of thrombotic events.

Used for

From the label: indications

ELIQUIS is a factor Xa inhibitor indicated: • to reduce the risk of stroke and systemic embolism in adult patients with nonvalvular atrial fibrillation. (1.1) • for the prophylaxis of deep vein thrombosis (DVT), which may lead to pulmonary embolism (PE), in adult patients who have undergone hip or knee replacement surgery. […]

On the market

Earliest approval on file
December 28, 2012
Generic labelers
2 labelers
Pharmacy cost
$5.52 per tablet

Supply and safety

Shortage
No current entry
Recalls
0

Highlights of the heparin record

Heparin · label of November 28, 2025

Used for

From the label: indications

Heparin Sodium Injection is indicated for: Anticoagulant therapy in prophylaxis and treatment of venous thrombosis and its extension; Low-dose regimen for prevention of postoperative deep venous thrombosis and pulmonary embolism in patients undergoing major abdominothoracic surgery or who, for other reasons, are at risk of developing thromboembolic disease (see DOSAGE AND ADMINISTRATION ); […]

On the market

Earliest approval on file
February 9, 1939
Generic labelers
18 labelers
Pharmacy cost
$1.18 per mL

Supply and safety

Shortage
In shortage
Recalls
18

Source: FDA drug labels via openFDA (Apixaban label of April 24, 2026, Heparin label of November 28, 2025); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do apixaban and heparin differ on the record?

In FDA's classes, apixaban is a factor xa inhibitor and heparin an unfractionated heparin.

Only the apixaban label carries a boxed warning.

Generics: apixaban since 2019; heparin since 1979 (Drugs@FDA).

ApixabanHeparin
Labeled forAtrial fibrillation, Blood clots (DVT and PE), Stroke preventionBlood clots (DVT and PE), Atrial fibrillation
Pharmacologic classFactor Xa InhibitorAnti-coagulant, Unfractionated Heparin
How it works (label)Apixaban is a selective inhibitor of FXa. It does not require antithrombin III for antithrombotic activity. Apixaban inhibits free and clot-bound FXa, and prothrombinase activity.n/a
Half-life (label)Apixaban has a total clearance of approximately 3.3 L/hour and an apparent half-life of approximately 12 hours following oral administration.n/a
Earliest approval on file (Drugs@FDA)December 28, 2012February 9, 1939
First generic approvedDecember 23, 2019March 13, 1979
Generic labelers (NDC)2 labelers18 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$5.52 per tablet (Eliquis 5 mg tablet)$1.18 per mL (Heparin sodium 5,000 unit/mL vial)
12-month price change-43%+9%
Boxed warningYesNo
Shortage nowNo current entryIn shortage
Recalls recorded018
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)66,52213,673
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

Do their labels mention each other?

Apixaban label, drug interactions

Coadministration of antiplatelet agents, fibrinolytics, heparin, aspirin, and chronic NSAID use increases the risk of bleeding.

Apixaban label, warnings and precautions

These include aspirin and other antiplatelet agents, other anticoagulants, heparin, thrombolytic agents, selective serotonin reuptake inhibitors, serotonin norepinephrine reuptake inhibitors, and nonsteroidal anti-inflammatory drugs (NSAIDs) [see Drug Interactions (7.3) ].

What both labels say about taking them together

Source: FDA drug labels via openFDA

What next?

Alternatives to apixaban
every medicine labeled for the same conditions