Last Updated: November 8, 2026

PREPIDIL Drug Patent Profile

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

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

Prepidil is a drug marketed by Pfizer and is included in one NDA.

The generic ingredient in PREPIDIL is dinoprostone. There is one drug master file entry for this compound. Two suppliers are listed for this compound. Additional details are available on the dinoprostone profile page.

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Summary for PREPIDIL

US Patents:	0
Applicants:	1
NDAs:	1
Finished Product Suppliers / Packagers:	1
Raw Ingredient (Bulk) Api Vendors:	1
Clinical Trials:	4
Patent Applications:	3,098
Drug Prices:	Drug price information for PREPIDIL
What excipients (inactive ingredients) are in PREPIDIL?	PREPIDIL excipients list
DailyMed Link:	PREPIDIL at DailyMed

Drug patent expirations by year for PREPIDIL

Recent Clinical Trials for PREPIDIL

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

Sponsor	Phase
Clinical Hospital Merkur	Phase 4
University of South Carolina	N/A
American University of Beirut Medical Center	Phase 3

See all PREPIDIL clinical trials

Pharmacology for PREPIDIL

Drug Class	Prostaglandin Analog

US Patents and Regulatory Information for PREPIDIL

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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	PREPIDIL	dinoprostone	GEL;ENDOCERVICAL	019617-001	Dec 9, 1992		RX	Yes	Yes	⤷ 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

Expired US Patents for PREPIDIL

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Pfizer	PREPIDIL	dinoprostone	GEL;ENDOCERVICAL	019617-001	Dec 9, 1992	3,966,962	⤷ Start Trial
Pfizer	PREPIDIL	dinoprostone	GEL;ENDOCERVICAL	019617-001	Dec 9, 1992	4,680,312	⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>Patent No.	>Patent Expiration

International Patents for PREPIDIL

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

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Country	Patent Number	Title	Estimated Expiration
Australia	1194876		⤷ Start Trial
Belgium	840075		⤷ Start Trial
Canada	1044140	COMPOSE CONTENANT UNE SUBSTANCE DU GENRE DE LA PROSTAGLANDINE-E (COMPOSITION CONTAINING E-TYPE PROSTAGLANDIN-LIKE COMPOUND)	⤷ Start Trial
Germany	2611183		⤷ Start Trial
>Country	>Patent Number	>Title	>Estimated 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.