Last Updated: September 24, 2026

DIENESTROL Drug Patent Profile

Name: DIENESTROL Drug Patent, Exclusivity, and Generic Launch Dataset
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

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Which patents cover Dienestrol, and what generic alternatives are available?

Dienestrol is a drug marketed by Ortho Mcneil Pharm and is included in one NDA.

The generic ingredient in DIENESTROL is dienestrol. There is one drug master file entry for this compound. Additional details are available on the dienestrol profile page.

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Summary for DIENESTROL

US Patents:	0
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	70
Patent Applications:	2,186
DailyMed Link:	DIENESTROL at DailyMed

Drug patent expirations by year for DIENESTROL

Medical Subject Heading (MeSH) Categories for DIENESTROL

Estrogens, Non-Steroidal

Anatomical Therapeutic Chemical (ATC) Classes for DIENESTROL

G03CB	Synthetic estrogens, plain
G03C	ESTROGENS
G03	SEX HORMONES AND MODULATORS OF THE GENITAL SYSTEM
G	Genito-urinary system and sex hormones

G03CC	Estrogens, combinations with other drugs
G03C	ESTROGENS
G03	SEX HORMONES AND MODULATORS OF THE GENITAL SYSTEM
G	Genito-urinary system and sex hormones

US Patents and Regulatory Information for DIENESTROL

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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
Ortho Mcneil Pharm	DIENESTROL	dienestrol	CREAM;VAGINAL	006110-005	Approved Prior to Jan 1, 1982		DISCN	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

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.