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Last Updated: April 26, 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-six 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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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 ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-004 Apr 15, 1982 AB RX Yes Yes ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-002 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-003 Approved Prior to Jan 1, 1982 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a Trial
>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 ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-002 Approved Prior to Jan 1, 1982 ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen SUSPENSION;ORAL 018965-001 Mar 23, 1987 ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen TABLET;ORAL 017581-004 Apr 15, 1982 ⤷  Try a Trial ⤷  Try a Trial
Atnahs Pharma Us NAPROSYN naproxen SUSPENSION;ORAL 018965-001 Mar 23, 1987 ⤷  Try a Trial ⤷  Try a Trial
>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
Germany 1668654 2-(6'-SUBSTITUIERTE-2'-NAPHTHYL)- PROPIONSAEUREN UND -DERIVATE, IHRE HERSTELLUNG UND SIE ENTHALTENDE ARZNEIMITTEL ⤷  Try a Trial
Japan S5614097 ⤷  Try a Trial
Spain 377393 ⤷  Try a Trial
Switzerland 548359 VERFAHREN ZUR HERSTELLUNG DER D-2-(6-METHOXY-2-NAPHTHYL)-PROPIONSAEURE. ⤷  Try a Trial
Spain 410159 ⤷  Try a Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for NAPROSYN

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0984957 PA2011005 Lithuania ⤷  Try a Trial PRODUCT NAME: NAPROXENUM + ESOMEPRAZOLUM; REGISTRATION NO/DATE: LT/1/10/2302/001-LT/1/10/2302/012 20110126
1411900 18/2011 Austria ⤷  Try a Trial PRODUCT NAME: NAPROXEN UND ESOMEPRAZOL SOWIE DEREN PHARMAZEUTISCH ANNEHMBARE SALZE; NAT. REGISTRATION NO/DATE: 1-29937 20110105; FIRST REGISTRATION: GB PL 17901/0263-0001 20101105
0984957 PA2011005,C0984957 Lithuania ⤷  Try a Trial PRODUCT NAME: NAPROXENUM + ESOMEPRAZOLUM; REGISTRATION NO/DATE: LT/1/10/2302/001-LT/1/10/2302/012 20110126
1411900 SPC/GB11/015 United Kingdom ⤷  Try a Trial PRODUCT NAME: NAPROXEN AND ESOMEPRAZOLE; REGISTERED: UK PL 17901/0263-0001 20101105
1411900 2011C/016 Belgium ⤷  Try a Trial PRODUCT NAME: NAPROXENE ET ESOMEPRAZOLE (SOUS LA FORME D'ESOMEPRAZOLE MAGNESIUM TRIHYDRATE); AUTHORISATION NUMBER AND DATE: BE382505 20101214
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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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. 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.