You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: March 26, 2026

Details for New Drug Application (NDA): 218590

✉ Email this page to a colleague

« Back to Dashboard

NDA 218590 describes ZURNAI (AUTOINJECTOR), which is a drug marketed by Purdue Pharma Lp and is included in one NDA. It is available from one supplier. There are two patents protecting this drug. Additional details are available on the ZURNAI (AUTOINJECTOR) profile page.

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.

Summary for 218590

Tradename:	ZURNAI (AUTOINJECTOR)
Applicant:	Purdue Pharma Lp
Ingredient:	nalmefene hydrochloride
Patents:	2

Pharmacology for NDA: 218590

Mechanism of Action	Opioid Antagonists

Suppliers and Packaging for NDA: 218590

Tradename	Generic Name	Dosage	NDA	Application Type	Supplier	National Drug Code	Package Code	Package
ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590	NDA	Purdue Pharma L.P.	59011-962	59011-962-01	1 SYRINGE, GLASS in 1 CARTON (59011-962-01) / .5 mL in 1 SYRINGE, GLASS

Profile for product number 001

Active Rx/OTC/Discontinued:	RX	Dosage:	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS			Strength	EQ 1.5MG BASE/0.5ML (EQ 1.5MG BASE/0.5ML)
Approval Date:	Aug 7, 2024	TE:		RLD:	Yes
Regulatory Exclusivity Expiration:	Aug 7, 2027
Regulatory Exclusivity Use:	NEW PRODUCT
Patent:	⤷ Start Trial	Patent Expiration:	Nov 5, 2039	Product Flag?	Y	Substance Flag?		Delist Request?
Patent:	⤷ Start Trial	Patent Expiration:	Nov 5, 2039	Product Flag?	Y	Substance Flag?		Delist Request?
Patented Use:	TREATING OPIOID OVERDOSE

Expired US Patents for NDA 218590

Subscribe to access the full database, or Start Trial
Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024	⤷ Start Trial	⤷ Start Trial
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024	⤷ Start Trial	⤷ Start Trial
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024	⤷ Start Trial	⤷ Start Trial
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024	⤷ Start Trial	⤷ Start Trial
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024	⤷ Start Trial	⤷ Start Trial
Purdue Pharma Lp	ZURNAI (AUTOINJECTOR)	nalmefene hydrochloride	SOLUTION;INTRAMUSCULAR, SUBCUTANEOUS	218590-001	Aug 7, 2024	⤷ Start Trial	⤷ Start Trial
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>Patent No.	>Patent Expiration

Complete Access Available with Subscription

Make Better Decisions: Try a trial or see plans & pricing

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.