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Last Updated: April 23, 2024

Estradiol - Generic Drug Details

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What are the generic sources for estradiol and what is the scope of freedom to operate?

Estradiol is the generic ingredient in forty-three branded drugs marketed by Allergan, Alvogen, Mylan, Padagis Israel, Prasco, Teva Pharms Usa, Abbvie, Bayer Hlthcare, Amneal, Mylan Technologies, Zydus Pharms, Parke Davis, Noven, Mylan Speciality Lp, Ascend Theraps Us, Vertical Pharms, Chemo Research Sl, Novitium Pharma, Pfizer, Mayne Pharma, Padagis Us, Women First Hlthcare, Novartis, Ortho Mcneil Pharm, Sandoz, Bristol Myers Squibb, Barr Labs Inc, Dr Reddys Labs Sa, Epic Pharma Llc, Lannett Co Inc, Usl Pharma, Duramed Pharms Barr, Novo Nordisk Inc, Amneal Pharms, Glenmark Pharms Ltd, Millicent, Apil, Dr Reddys, Pharmacia And Upjohn, Watson Labs, Exeltis Usa Inc, Par Sterile Products, Am Regent, Fosun Pharma, Hikma, Xiromed, Savage Labs, Noven Pharms Inc, Lupin Ltd, Barr, Breckenridge Pharm, Mylan Labs Ltd, Naari Pte Ltd, Novast Labs, Aurobindo Pharma Ltd, Myovant Sciences, and Teva Womens, and is included in eighty-four NDAs. There are fifty-five patents protecting this compound and four Paragraph IV challenges. Additional information is available in the individual branded drug profile pages.

Estradiol has one hundred and eighty-three patent family members in twenty-six countries.

There are seventy-five drug master file entries for estradiol. Forty-five suppliers are listed for this compound. There is one tentative approval for this compound.

Summary for estradiol

International Patents:	183
US Patents:	55
Tradenames:	43
Applicants:	57
NDAs:	84
Drug Master File Entries:	75
Finished Product Suppliers / Packagers:	45
Raw Ingredient (Bulk) Api Vendors:	109
Clinical Trials:	987
Patent Applications:	6,728
Formulation / Manufacturing:	see details
Drug Prices:	Drug price trends for estradiol
Drug Sales Revenues:	Drug sales revenues for estradiol
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for estradiol
What excipients (inactive ingredients) are in estradiol?	estradiol excipients list
DailyMed Link:	estradiol at DailyMed

See drug prices for estradiol

See drug sales revenues for estradiol

Recent Clinical Trials for estradiol

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
Gary Schwartz	Phase 1
Dartmouth-Hitchcock Medical Center	Phase 1
Beni-Suef University	Phase 2/Phase 3

See all estradiol clinical trials

Generic filers with tentative approvals for ESTRADIOL

Applicant	Application No.	Strength	Dosage Form
⤷ Try a Trial	⤷ Try a Trial	1MG;2MG;2MG	TABLET;ORAL
⤷ Try a Trial	⤷ Try a Trial	3MG;2MG;3MG	TABLET;ORAL

The 'tentative' approval signifies that the product meets all FDA standards for marketing, and, but for the patents / regulatory protections, it would approved.

Pharmacology for estradiol

Drug Class	Estrogen
Mechanism of Action	Estrogen Receptor Agonists

Medical Subject Heading (MeSH) Categories for estradiol

Estrogens

Paragraph IV (Patent) Challenges for ESTRADIOL

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
IMVEXXY	Vaginal Inserts	estradiol	4 mcg and 10 mcg	208564	1	2019-12-30
MINIVELLE	Transdermal System	estradiol	0.025 mg/day	203752	1	2015-05-08
MINIVELLE	Transdermal System	estradiol	0.0375 mg/day 0.05 mg/day 0.075 mg/day 0.1 mg/day	203752	1	2014-08-18
VAGIFEM	Vaginal Tablets	estradiol	10 mcg	020908	1	2013-01-02
VIVELLE-DOT	Transdermal System	estradiol	0.025 mg/day 0.0375 mg/day 0.05 mg/days 0.075 mg/day 0.1 mg/day	020538	1	2010-04-27
CLIMARA	Transdermal System	estradiol	0.05 mg/day and 0.1 mg/day	020375		2005-09-12

US Patents and Regulatory Information for estradiol

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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
Women First Hlthcare	ESCLIM	estradiol	SYSTEM;TRANSDERMAL	020847-001	Aug 4, 1998		DISCN	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Barr Labs Inc	ESTRADIOL	estradiol	TABLET;ORAL	040197-001	Oct 22, 1997	AB	RX	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Mayne Pharma	BIJUVA	estradiol; progesterone	CAPSULE;ORAL	210132-001	Oct 28, 2018		RX	Yes	Yes	⤷ Try a Trial	⤷ Try a Trial	Y			⤷ Try a Trial
Women First Hlthcare	ESCLIM	estradiol	SYSTEM;TRANSDERMAL	020847-005	Aug 4, 1998		DISCN	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Novartis	ESTRADERM	estradiol	SYSTEM;TRANSDERMAL	019081-003	Sep 10, 1986		DISCN	Yes	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
Mayne Pharma	IMVEXXY	estradiol	INSERT;VAGINAL	208564-002	May 29, 2018		RX	Yes	Yes	⤷ Try a Trial	⤷ Try a Trial	Y			⤷ Try a Trial
Amneal Pharms	ESTRADIOL AND PROGESTERONE	estradiol; progesterone	CAPSULE;ORAL	214293-001	May 16, 2022		DISCN	No	No	⤷ Try a Trial	⤷ Try a Trial				⤷ Try a Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

Expired US Patents for estradiol

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Sandoz	VIVELLE	estradiol	SYSTEM;TRANSDERMAL	020323-004	Oct 28, 1994	⤷ Try a Trial	⤷ Try a Trial
Pfizer	ESTRING	estradiol	INSERT, EXTENDED RELEASE;VAGINAL	020472-001	Apr 26, 1996	⤷ Try a Trial	⤷ Try a Trial
Sandoz	VIVELLE	estradiol	SYSTEM;TRANSDERMAL	020323-001	Oct 28, 1994	⤷ Try a Trial	⤷ Try a Trial
Sandoz	VIVELLE	estradiol	SYSTEM;TRANSDERMAL	020323-005	Aug 16, 2000	⤷ Try a Trial	⤷ Try a Trial
Noven	MINIVELLE	estradiol	FILM, EXTENDED RELEASE;TRANSDERMAL	203752-003	Oct 29, 2012	⤷ Try a Trial	⤷ Try a Trial
Parke Davis	FEMPATCH	estradiol	FILM, EXTENDED RELEASE;TRANSDERMAL	020417-001	Dec 3, 1996	⤷ Try a Trial	⤷ Try a Trial
Bayer Hlthcare	CLIMARA	estradiol	FILM, EXTENDED RELEASE;TRANSDERMAL	020375-002	Dec 22, 1994	⤷ Try a Trial	⤷ Try a Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>Patent No.	>Patent Expiration

International Patents for estradiol

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Country	Patent Number	Title	Estimated Expiration
Japan	6656215		⤷ Try a Trial
Serbia	62297	PRIRODNE KOMBINOVANE HORMONSKE SUPSTITUCIONE FORMULACIJE I TERAPIJE (NATURAL COMBINATION HORMONE REPLACEMENT FORMULATIONS AND THERAPIES)	⤷ Try a Trial
Japan	2015520236	経皮的ホルモン補充療法	⤷ Try a Trial
South Korea	102163369		⤷ Try a Trial
South Korea	102335160		⤷ Try a Trial
Japan	6298460		⤷ Try a Trial
World Intellectual Property Organization (WIPO)	2013192250		⤷ Try a Trial
>Country	>Patent Number	>Title	>Estimated Expiration

Supplementary Protection Certificates for estradiol

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Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1453521	15C0050	France	⤷ Try a Trial	PRODUCT NAME: ETHINYLESTRADIOL ET MELANGE DE LEVONORGESTREL ET ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: NL 42237 20150320; FIRST REGISTRATION: SK - 17/0017/15-S 20150129
0771217	CA 2006 00038	Denmark	⤷ Try a Trial	PRODUCT NAME: ETHINYLESTRADIOL (SOM BETA-CYCLODEXTRIN-CLATHRAT) OG DROSPIRENON; NAT. REG. NO/DATE: 38687 20060627; FIRST REG. NO/DATE: EU RVG 31781 20050804
1214076	C01214076/01	Switzerland	⤷ Try a Trial	PRODUCT NAME: DROSPIRENONE + ETHINYLESTRADIOL; REGISTRATION NUMBER/DATE: SWISSMEDIC 57946 13.06.2008
2782584	122021000080	Germany	⤷ Try a Trial	PRODUCT NAME: ZUSAMMENSETZUNG, DIE SOWOHL ESTRADIOL (17SS-ESTRADIOL), GEGEBENENFALLS IN FORM EINES PHARMAZEUTISCH ANNEHMBAREN SALZES, HYDRATS ODER SOLVATS DAVON (EINSCHLIESSLICH IN FORM EINES HEMIHYDRATS), ALS AUCH PROGESTERON ENTHAELT; NAT. REGISTRATION NO/DATE: 2205034.00.00 20210924; FIRST REGISTRATION: BELGIEN BE582231 20210406
1453521	C 2015 029	Romania	⤷ Try a Trial	PRODUCT NAME: LEVONORGESTREL SI ETINILESTRADIOL; NATIONAL AUTHORISATION NUMBER: RO 7793/2015/001; DATE OF NATIONAL AUTHORISATION: 20150612; NUMBER OF FIRST AUTHORISATION IN EUROPEAN ECONOMIC AREA (EEA): SK. 17/0017/15-S; DATE OF FIRST AUTHORISATION IN EEA: 20150129
0770388	PA2009004,C0770388	Lithuania	⤷ Try a Trial	PRODUCT NAME: ESTRADIOLI VALERAS + DIENOGESTUM; NAT. REGISTRATION NO/DATE: LT/1/09/1512/001, 2009 04 06 LT/1/09/1512/002, 2009 04 06 LT/1/09/1512/003 20090406; FIRST REGISTRATION: BE 327792 20081103
0334429	97C0002	Belgium	⤷ Try a Trial	PRODUCT NAME: ESTRADIOL; NAT. REGISTRATION NO/DATE: NL 18978 19960731; FIRST REGISTRATION: SE - 11783 19930305
>Patent Number	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration	>SPC Description

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