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Last Updated: April 3, 2026

WARFARIN Drug Patent Profile

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When do Warfarin patents expire, and what generic alternatives are available?

Warfarin is a drug marketed by Aiping Pharm Inc, Amneal Pharms, Aurobindo Pharma Usa, Barr, Chartwell Rx, Invagen Pharms, Pliva, Taro, Usl Pharma, Watson Labs, and Zydus Pharms Usa. and is included in seventeen NDAs.

The generic ingredient in WARFARIN is warfarin sodium. There are twenty-two drug master file entries for this compound. Twenty suppliers are listed for this compound. Additional details are available on the warfarin sodium profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Warfarin

A generic version of WARFARIN was approved as warfarin sodium by TARO on July 15^th, 1999.

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Summary for WARFARIN

US Patents:	0
Applicants:	11
NDAs:	17
Drug Prices:	Drug price information for WARFARIN
Drug Sales Revenues:	Drug sales revenues for WARFARIN
DailyMed Link:	WARFARIN at DailyMed

Drug patent expirations by year for WARFARIN

Drug Prices for WARFARIN

US Patents and Regulatory Information for WARFARIN

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Taro	WARFARIN SODIUM	warfarin sodium	TABLET;ORAL	040301-001	Jul 15, 1999	AB	RX	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Chartwell Rx	WARFARIN SODIUM	warfarin sodium	TABLET;ORAL	040196-004	Sep 30, 1997		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Barr	WARFARIN SODIUM	warfarin sodium	TABLET;ORAL	040145-004	Mar 26, 1997		DISCN	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Zydus Pharms Usa	WARFARIN SODIUM	warfarin sodium	TABLET;ORAL	040663-006	May 30, 2006	AB	RX	No	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

DrugChatter Q&A for WARFARIN

Is muscle risk higher with warfarin and lipitor together?
Is lipid level reduction related to warfarin s effect?
How does warfarin interact with lipitor?
Interactions with other medications besides warfarin?
Can lipator affect warfarin s blood thinning properties?

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