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Last Updated: July 16, 2024

NAPROSYN Drug Patent Profile


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

Naprosyn is a drug marketed by Atnahs Pharma Us and is included in two NDAs.

The generic ingredient in NAPROSYN is naproxen. There are forty-two drug master file entries for this compound. Fifty-seven suppliers are listed for this compound. Additional details are available on the naproxen profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Naprosyn

A generic version of NAPROSYN was approved as naproxen by GRANULES on December 21st, 1993.

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Drug patent expirations by year for NAPROSYN
Drug Prices for NAPROSYN

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Recent Clinical Trials for NAPROSYN

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
Northwestern Medical GroupPhase 2
Shirley Ryan AbilityLabPhase 2
Western University, CanadaN/A

See all NAPROSYN clinical trials

Pharmacology for NAPROSYN

US Patents and Regulatory Information for NAPROSYN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Atnahs Pharma Us NAPROSYN naproxen SUSPENSION;ORAL 018965-001 Mar 23, 1987 AB RX Yes No ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-004 Apr 15, 1982 AB RX Yes Yes ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-003 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Sign Up ⤷  Sign Up ⤷  Sign Up
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for NAPROSYN

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-003 Approved Prior to Jan 1, 1982 ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-002 Approved Prior to Jan 1, 1982 ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-002 Approved Prior to Jan 1, 1982 ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen SUSPENSION;ORAL 018965-001 Mar 23, 1987 ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-002 Approved Prior to Jan 1, 1982 ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-003 Approved Prior to Jan 1, 1982 ⤷  Sign Up ⤷  Sign Up
Atnahs Pharma Us NAPROSYN naproxen SUSPENSION;ORAL 018965-001 Mar 23, 1987 ⤷  Sign Up ⤷  Sign Up
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for NAPROSYN

See the table below for patents covering NAPROSYN around the world.

Country Patent Number Title Estimated Expiration
France 2035847 ⤷  Sign Up
Germany 1793825 ⤷  Sign Up
Belgium 734275 ⤷  Sign Up
United Kingdom 1301456 ⤷  Sign Up
Japan S5627503 ⤷  Sign Up
Switzerland 550759 VERFAHREN ZUR HERSTELLUNG DER D-2-(6-METHOXY-2-NAPHTHYL)-PROPIONSAEURE. (2-(6-Methoxy-2-naphthyl) propionic acid prepns. - anti-pyretics, analgesics, anti-inflammatory agents) ⤷  Sign Up
France 8487 ⤷  Sign Up
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for NAPROSYN

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1411900 C300481 Netherlands ⤷  Sign Up PRODUCT NAME: NAPROXEN EN ESOMEPRAZOL; NAT. REGISTRATION NO/DATE: RVG 106235 20101118; FIRST REGISTRATION: PL 17901/0263-001 20101105
1411900 2011C/016 Belgium ⤷  Sign Up PRODUCT NAME: NAPROXENE ET ESOMEPRAZOLE (SOUS LA FORME D'ESOMEPRAZOLE MAGNESIUM TRIHYDRATE); AUTHORISATION NUMBER AND DATE: BE382505 20101214
0984957 SPC/GB11/013 United Kingdom ⤷  Sign Up PRODUCT NAME: NAPROXEN AND ESOMEPRAZOLE; REGISTERED: UK PL 17901/0263-0001 20101105
1411900 SPC/GB11/015 United Kingdom ⤷  Sign Up PRODUCT NAME: NAPROXEN AND ESOMEPRAZOLE; REGISTERED: UK PL 17901/0263-0001 20101105
0984957 PA2011005,C0984957 Lithuania ⤷  Sign Up PRODUCT NAME: NAPROXENUM + ESOMEPRAZOLUM; REGISTRATION NO/DATE: LT/1/10/2302/001-LT/1/10/2302/012 20110126
0984957 PA2011005 Lithuania ⤷  Sign Up PRODUCT NAME: NAPROXENUM + ESOMEPRAZOLUM; REGISTRATION NO/DATE: LT/1/10/2302/001-LT/1/10/2302/012 20110126
1411900 122012000052 Germany ⤷  Sign Up PRODUCT NAME: NAPROXEN MIT ESOMEPRAZOL; NAT. REGISTRATION NO/DATE: 85145.00.00 20120202; FIRST REGISTRATION: GROSSBRITANNIEN PL 17901/0263 - 0001 20101105
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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