Last Updated: November 13, 2026

PREPIDIL Drug Patent Profile

When do Prepidil patents expire, and when can generic versions of Prepidil launch?

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

The generic ingredient in PREPIDIL is dinoprostone. 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

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

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
>Country	>Patent Number	>Title	>Estimated Expiration

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