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Last Updated: March 28, 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 017581-004 Apr 15, 1982 ⤷  Try a Trial ⤷  Try a Trial
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 SUSPENSION;ORAL 018965-001 Mar 23, 1987 ⤷  Try a Trial ⤷  Try a Trial
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 017581-004 Apr 15, 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
>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
Spain 410160 ⤷  Try a Trial
Switzerland 548361 VERFAHREN ZUR HERSTELLUNG DER D-2-(6-METHOXY-2-NPHTHYL)-PROPIONSAEURE. (2-(6-Methoxy-2-naphthyl) propionic acid prepns. - anti-pyretics, analgesics, anti-inflammatory agents) ⤷  Try a Trial
Sweden 7611150 ⤷  Try a Trial
Spain 410147 ⤷  Try a Trial
Netherlands 6910156 ⤷  Try a Trial
Japan S5627503 ⤷  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,C0984957 Lithuania ⤷  Try a Trial PRODUCT NAME: NAPROXENUM + ESOMEPRAZOLUM; REGISTRATION NO/DATE: LT/1/10/2302/001-LT/1/10/2302/012 20110126
1411900 1190013-1 Sweden ⤷  Try a Trial PRODUCT NAME: NAPROXEN OCH ESOMEPRAZOL; NAT. REG. NO/DATE: MTNR 43248 20101203; FIRST REG.: GB PL 17901/0263 20101105
1411900 C300481 Netherlands ⤷  Try a Trial PRODUCT NAME: NAPROXEN EN ESOMEPRAZOL; NAT. REGISTRATION NO/DATE: RVG 106235 20101118; FIRST REGISTRATION: PL 17901/0263-001 20101105
1411900 SPC/GB11/015 United Kingdom ⤷  Try a Trial PRODUCT NAME: NAPROXEN AND ESOMEPRAZOLE; REGISTERED: UK PL 17901/0263-0001 20101105
0984957 CR 2012 00035 Denmark ⤷  Try a Trial PRODUCT NAME: ET KOMBINATIONSPRODUKT AF NAPROXEN OG ESOMEPRAZOL MAGNESIUM TRIHYDRAT; NAT. REG. NO/DATE: 49583 20120327; FIRST REG. NO/DATE: GB PL 17901/0263-001 20101105
0984957 SPC/GB11/013 United Kingdom ⤷  Try a Trial PRODUCT NAME: NAPROXEN AND ESOMEPRAZOLE; REGISTERED: UK PL 17901/0263-0001 20101105
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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