Last Updated: June 17, 2026

DIFLUCAN Drug Patent Profile

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

Diflucan is a drug marketed by Pfizer and is included in three NDAs.

The generic ingredient in DIFLUCAN is fluconazole. There are twenty-three drug master file entries for this compound. Forty-one suppliers are listed for this compound. Additional details are available on the fluconazole profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Diflucan

A generic version of DIFLUCAN was approved as fluconazole by CHARTWELL on July 29^th, 2004.

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Summary for DIFLUCAN

US Patents:	0
Applicants:	1
NDAs:	3

US Patents and Regulatory Information for DIFLUCAN

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Glossary

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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
Pfizer	DIFLUCAN	fluconazole	FOR SUSPENSION;ORAL	020090-001	Dec 23, 1993	AB	RX	Yes	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Pfizer	DIFLUCAN IN DEXTROSE 5% IN PLASTIC CONTAINER	fluconazole	INJECTABLE;INJECTION	019950-003	Sep 29, 1992		DISCN	Yes	No	⤷ Start Trial	⤷ Start Trial				⤷ Start Trial
Pfizer	DIFLUCAN	fluconazole	TABLET;ORAL	019949-002	Jan 29, 1990	AB	RX	Yes	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

International Patents for DIFLUCAN

See the table below for patents covering DIFLUCAN around the world.

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Country	Patent Number	Title	Estimated Expiration
Japan	S63165333	1, 3-DIHALO-2-SUBSTITUTED PROPAN-2-OL	⤷ Start Trial
Norway	158538		⤷ Start Trial
Poland	239801		⤷ Start Trial
>Country	>Patent Number	>Title	>Estimated Expiration

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