TheraRadar
Data updated: May 26, 2026

JANTOVEN (warfarin sodium)

Cardiovascular Approved 2003-10-02

Jantoven is an anticoagulant indicated for the prophylaxis and treatment of venous thrombosis, pulmonary embolism, and thromboembolic complications associated with atrial fibrillation or cardiac valve replacement. It is also indicated to reduce the risk of death, recurrent myocardial infarction (MI), and thromboembolic events (such as stroke or systemic embolization) following an MI. While Jantoven has no direct effect on established thrombi and does not reverse ischemic tissue damage, it is used to prevent further extension of formed clots and to mitigate secondary, potentially fatal thromboembolic complications.

Source: FDA Label • UPSHER SMITH LABS

How JANTOVEN Works

Warfarin acts as a vitamin K antagonist by inhibiting the C1 subunit of the vitamin K epoxide reductase (VKORC1) enzyme complex. This inhibition prevents the regeneration of vitamin K1 epoxide, thereby depleting the functional vitamin K required for the post-ribosomal synthesis of vitamin K-dependent clotting factors (Factors II, VII, IX, and X) and anticoagulant proteins (Proteins C and S). By interfering with the γ-carboxylation of glutamic acid residues on these proteins, the drug significantly reduces the body's procoagulant capacity.

Source: FDA Label
1
Indication
--
Phase 3 Trials
22
Years on Market

Details

Status
Prescription
First Approved
2003-10-02
Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: WARFARIN SODIUM

JANTOVEN Approval History

2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
99 FDA actions from 2003 to 2019
Sep 2019 SUPPL
Label · Labeling
Jun 2015 SUPPL
Label · Labeling
Mar 2012 SUPPL
Label · Labeling

What JANTOVEN Treats

6 indications

JANTOVEN is approved for 6 conditions since its original approval in 2003. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Venous Thrombosis
  • Pulmonary Embolism
  • Thromboembolism
  • Atrial Fibrillation
  • Myocardial Infarction
  • Stroke
Source: FDA Label

JANTOVEN Boxed Warning

BLEEDING RISK Warfarin Sodium can cause major or fatal bleeding [see Warnings and Precautions (5.1) ]. Perform regular monitoring of INR in all treated patients [see Dosage and Administration (2.1) ]. Drugs, dietary changes, and other factors affect INR levels achieved with Warfarin Sodium therapy [see Drug Interactions (7) ]. Instruct patients about prevention measures to minimize risk of bleeding and to report signs and symptoms of bleeding [see Patient Counseling Information (17) ]. WARNING: ...

JANTOVEN Competitive Set

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications JANTOVEN treats. First-in-class if their pivotal trials read out positive.

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Clinical Trial Registry

6 trials
Trial Sponsor ID Phase Status Title
NCT07404436 2023-P2-369-01 Ph 4 recruiting Rivaroxaban in Idiopathic Membranous Nephropathy
NCT02982590 results posted 304/PPSP/61313197 Ph 3 completed Apixaban Versus Warfarin in Patients With Left Ventricular Thrombus
NCT03926780 No-LVT YIG01201903 Ph 3 completed Comparative Study of Oral Anticoagulation in Left Ventricular Thrombi
NCT01133366 MIPO2900509 Ph 1 completed A Study to Determine the Effects of Multiple Doses of Mipomersen (200 mg SC) on the Pharmacodynamics and Pharmacokinetics of Single-dose Warfarin
NCT02182336 1220.32 Ph 1 completed Effects of BI 201335 NA on Cytochrome P450 and P-glycoprotein Activity Using a Probe Drug Cocktail in Healthy Volunteers
NCT00787150 results posted B0661003 Ph 2 completed A Phase 2 Study To Evaluate The Safety Of Apixaban In Atrial Fibrillation
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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

JANTOVEN FDA Label Details

Indications & Usage

JANTOVEN is indicated for the treatment of Venous Thrombosis; Pulmonary Embolism; Thromboembolism; Atrial Fibrillation; Myocardial Infarction; Stroke.

⚠️ BOXED WARNING

WARNING: BLEEDING RISK Warfarin Sodium can cause major or fatal bleeding [see Warnings and Precautions (5.1) ]. Perform regular monitoring of INR in all treated patients [see Dosage and Administration (2.1) ]. Drugs, dietary changes, and other factors affect INR levels achieved with Warfarin Sodium ...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.