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Last Updated: December 12, 2025

SPIRONOLACTONE W Drug Patent Profile

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

Spironolactone W is a drug marketed by Ivax Pharms, Lederle, Parke Davis, Purepac Pharm, Upsher Smith, Usl Pharma, Vangard, and Watson Labs. and is included in nine NDAs.

The generic ingredient in SPIRONOLACTONE W is hydrochlorothiazide; spironolactone. There are thirty-two drug master file entries for this compound. Five suppliers are listed for this compound. Additional details are available on the hydrochlorothiazide; spironolactone profile page.

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Summary for SPIRONOLACTONE W

US Patents:	0
Applicants:	8
NDAs:	9
DailyMed Link:	SPIRONOLACTONE W at DailyMed

Drug patent expirations by year for SPIRONOLACTONE W

US Patents and Regulatory Information for SPIRONOLACTONE W

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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
Ivax Pharms	SPIRONOLACTONE W/ HYDROCHLOROTHIAZIDE	hydrochlorothiazide; spironolactone	TABLET;ORAL	087004-002	May 24, 1982		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
Vangard	SPIRONOLACTONE W/ HYDROCHLOROTHIAZIDE	hydrochlorothiazide; spironolactone	TABLET;ORAL	087655-001	Approved Prior to Jan 1, 1982		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
Purepac Pharm	SPIRONOLACTONE W/ HYDROCHLOROTHIAZIDE	hydrochlorothiazide; spironolactone	TABLET;ORAL	088054-001	Aug 18, 1983		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
Watson Labs	SPIRONOLACTONE W/ HYDROCHLOROTHIAZIDE	hydrochlorothiazide; spironolactone	TABLET;ORAL	085974-001	Approved Prior to Jan 1, 1982		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
Lederle	SPIRONOLACTONE W/ HYDROCHLOROTHIAZIDE	hydrochlorothiazide; spironolactone	TABLET;ORAL	087511-001	Approved Prior to Jan 1, 1982		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
Parke Davis	SPIRONOLACTONE W/ HYDROCHLOROTHIAZIDE	hydrochlorothiazide; spironolactone	TABLET;ORAL	087948-001	Feb 22, 1983		DISCN	No	No	⤷ Get Started Free	⤷ Get Started Free				⤷ Get Started Free
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

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