ZURNAI (AUTOINJECTOR) Drug Patent Profile

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When do Zurnai (autoinjector) patents expire, and what generic alternatives are available?

Zurnai (autoinjector) is a drug marketed by Purdue Pharma Lp and is included in one NDA. There are twenty-one patents protecting this drug.

This drug has sixty-eight patent family members in fourteen countries.

The generic ingredient in ZURNAI (AUTOINJECTOR) is nalmefene hydrochloride. There are four drug master file entries for this compound. Three suppliers are listed for this compound. Additional details are available on the nalmefene hydrochloride profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Zurnai (autoinjector)

A generic version of ZURNAI (AUTOINJECTOR) was approved as nalmefene hydrochloride by PURDUE PHARMA LP on February 8^th, 2022.

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Summary for ZURNAI (AUTOINJECTOR)

International Patents:	68
US Patents:	21
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for ZURNAI (AUTOINJECTOR)
DailyMed Link:	ZURNAI (AUTOINJECTOR) at DailyMed

Drug patent expirations by year for ZURNAI (AUTOINJECTOR)

US Patents and Regulatory Information for ZURNAI (AUTOINJECTOR)

ZURNAI (AUTOINJECTOR) is protected by twenty-one US patents and one FDA Regulatory Exclusivity.

Patents protecting ZURNAI (AUTOINJECTOR)

Injection device with cammed RAM assembly
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Needle assisted jet injection device having reduced trigger force
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Prefilled syringe injector
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Needle assisted injection device having reduced trigger force
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Injection device with cammed ram assembly
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Syringe shock absorber for use in an injection device
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Prefilled syringe injector
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Patented Use: TREATING OPIOID OVERDOSE

Prefilled syringe jet injector
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Injection device with cammed ram assembly
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Prefilled syringe jet injector
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up

Injection device with cammed ram assembly
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up

Needle assisted jet injection device having reduced trigger force
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up

Injection device with cammed ram assembly
Patent Number: ⤷ Sign Up
Patent Expiration: ⤷ Sign Up

Prefilled syringe jet injector
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Patent Expiration: ⤷ Sign Up

FDA Regulatory Exclusivity protecting ZURNAI (AUTOINJECTOR)

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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
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024		RX	Yes	Yes	⤷ Sign Up	⤷ Sign Up	Y			⤷ Sign Up
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024		RX	Yes	Yes	⤷ Sign Up	⤷ Sign Up	Y			⤷ Sign Up
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024		RX	Yes	Yes	⤷ Sign Up	⤷ Sign Up	Y			⤷ Sign Up
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024		RX	Yes	Yes	⤷ Sign Up	⤷ Sign Up	Y			⤷ Sign Up
>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 ZURNAI (AUTOINJECTOR)

See the table below for patents covering ZURNAI (AUTOINJECTOR) around the world.

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Country	Patent Number	Title	Estimated Expiration
Japan	2017523858	注射装置で使用するためのシリンジ緩衝器	⤷ Sign Up
Japan	2019150661	注射装置で使用するためのシリンジ緩衝器 (SYRINGE SHOCK ABSORBER FOR USE IN INJECTION DEVICE)	⤷ Sign Up
Australia	2019376633	Compositions and methods for opioid antagonist delivery	⤷ Sign Up
World Intellectual Property Organization (WIPO)	2014124464		⤷ Sign Up
>Country	>Patent Number	>Title	>Estimated Expiration

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Summary for ZURNAI (AUTOINJECTOR)

Patents protecting ZURNAI (AUTOINJECTOR)

FDA Regulatory Exclusivity protecting ZURNAI (AUTOINJECTOR)

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