Last Updated: June 24, 2026

NARCAN Drug Patent Profile


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DrugPatentWatch® Litigation and Generic Entry Outlook for Narcan

A generic version of NARCAN was approved as naloxone hydrochloride by HOSPIRA on September 24th, 1986.

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Recent Clinical Trials for NARCAN

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SponsorPhase
University of New MexicoPHASE3
Cure Addiction NowPhase 3
Johns Hopkins UniversityPhase 3

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Pharmacology for NARCAN
Drug ClassOpioid Antagonist
Mechanism of ActionOpioid Antagonists
Paragraph IV (Patent) Challenges for NARCAN
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
NARCAN Nasal Spray naloxone hydrochloride 2 mg/spray 208411 1 2017-12-28
NARCAN Nasal Spray naloxone hydrochloride 4 mg/spray 208411 1 2016-07-15

US Patents and Regulatory Information for NARCAN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Adapt NARCAN naloxone hydrochloride INJECTABLE;INJECTION 016636-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Emergent NARCAN naloxone hydrochloride SPRAY, METERED;NASAL 208411-002 Jan 24, 2017 DISCN Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Bristol Myers Squibb NARCAN naloxone hydrochloride INJECTABLE;INJECTION 071083-001 Jul 28, 1988 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Emergent NARCAN naloxone hydrochloride SPRAY, METERED;NASAL 208411-001 Nov 18, 2015 OTC Yes Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Adapt NARCAN naloxone hydrochloride INJECTABLE;INJECTION 016636-001 Approved Prior to Jan 1, 1982 DISCN Yes 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

Supplementary Protection Certificates for NARCAN

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1685839 92292 Luxembourg ⤷  Start Trial PRODUCT NAME: COMBINAISON D OXYCODONE EN TANT QUE COMPOSANT A ET DE NALOXONE EN TANT QUE COMPOSANT B SOUS TOUTES LES FORMES PROTEGES PAR LE BREVET DE BASE
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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