Last Updated: September 28, 2026

REXTOVY Drug Patent Profile


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When do Rextovy patents expire, and what generic alternatives are available?

Rextovy is a drug marketed by Amphastar Pharms Inc and is included in one NDA.

The generic ingredient in REXTOVY is naloxone hydrochloride. There is one drug master file entry for this compound. Forty-eight suppliers are listed for this compound. Additional details are available on the naloxone hydrochloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Rextovy

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

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Summary for REXTOVY
US Patents:0
Applicants:1
NDAs:1
Finished Product Suppliers / Packagers: 1
What excipients (inactive ingredients) are in REXTOVY?REXTOVY excipients list
DailyMed Link:REXTOVY at DailyMed
Pharmacology for REXTOVY
Drug ClassOpioid Antagonist
Mechanism of ActionOpioid Antagonists

US Patents and Regulatory Information for REXTOVY

REXTOVY is protected by zero US patents and one FDA Regulatory Exclusivity.

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Amphastar Pharms Inc REXTOVY naloxone hydrochloride SPRAY, METERED;NASAL 208969-001 Mar 7, 2023 OTC 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

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