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Data / Drug companies / Vitamin K Antagonist

Vitamin K Antagonist drugs: 2 drugs from 21 companies in the FDA NDC directory

Vitamin K Antagonist is an FDA established pharmacologic class. The FDA National Drug Code Directory lists 148 products in this class from 21 companies, covering 2 drugs by generic name. The main marketing category is generic drugs (ANDA), and the newest product started marketing on August 31, 2026.

SpecStream is the live web data engine for teams and agents. It reads the National Drug Code Directory that FDA publishes, and this page is that reading. Ask for the companies that make a drug, a class or a dosage form, with their headquarters, website and size added from the web, and new listings and discontinued products arrive in your sheet, CRM, Slack or agent as FDA posts them.

  • 21Companies
  • 148Products
  • 2Drugs by generic name

Drugs in the Vitamin K Antagonist class

Ranked by number of companies that list the drug.

DrugProducts hereCompanies listing it
Warfarin sodium8616
Warfarin6210

Companies with the most products in this class

CompanyProductsMain dosage formsMain marketing categoryNewest product started
Remedyrepack Inc.24tabletGeneric drugs (ANDA)August 6, 2026
Golden State Medical Supply, Inc.15tabletGeneric drugs (ANDA)May 25, 2011
A-S Medication Solutions14tabletGeneric drugs (ANDA)June 9, 2015
Bryant Ranch Prepack12tabletGeneric drugs (ANDA)August 27, 2018
Amneal Pharmaceuticals LLC9tabletGeneric drugs (ANDA)August 16, 2010
Exelan Pharmaceuticals Inc.9tabletGeneric drugs (ANDA)April 8, 2015
Sun Pharmaceutical Industries, Inc.9tabletGeneric drugs (ANDA)July 15, 1999
Teva Pharmaceuticals USA, Inc.9tabletGeneric drugs (ANDA)August 27, 2018
Upsher-Smith Laboratories, LLC9tabletGeneric drugs (ANDA)February 23, 2010
Aphena Pharma Solutions - Tennessee, LLC8tabletGeneric drugs (ANDA)May 25, 2011
Aphena Pharma Solutions - Tennessee, LLC6tabletGeneric drugs (ANDA)April 8, 2015
Coupler LLC6tabletGeneric drugs (ANDA)August 31, 2026
Cardinal Health 107, LLC3tabletGeneric drugs (ANDA)July 29, 2004
Northwind Health Company, LLC3tabletGeneric drugs (ANDA)March 29, 2023
Proficient Rx LP3tabletGeneric drugs (ANDA)May 12, 2015
American Health Packaging2tabletGeneric drugs (ANDA)June 1, 2005
Bryant Ranch Prepack2tabletGeneric drugs (ANDA)April 7, 2015
Direct_Rx2tabletGeneric drugs (ANDA)December 15, 2022
American Health Packaging1tabletGeneric drugs (ANDA)October 6, 2005
PD-Rx Pharmaceuticals, Inc.1tabletGeneric drugs (ANDA)April 7, 2015
Preferred Pharmaceuticals Inc.1tabletGeneric drugs (ANDA)March 21, 2023

Dosage forms

Dosage formProductsShare
Tablet148100%

Updated November 6, 2026. Read from US Food and Drug Administration, National Drug Code Directory (openFDA). CC0 1.0 public domain dedication (openFDA). Counts are products in the FDA National Drug Code Directory on November 6, 2026: 138,262 products in commercial distribution, meaning without a marketing end date in the past. A company is a labeler code; one company can hold several codes, and the directory carries no address. Inclusion in the directory is not FDA approval, and the marketing category says under which kind of application or rule a product is sold. This page uses openFDA data and is not endorsed or certified by FDA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.