Last Updated: June 10, 2026

TAMOXIFEN Drug Patent Profile


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Which patents cover Tamoxifen, and when can generic versions of Tamoxifen launch?

Tamoxifen is a drug marketed by Actavis Labs Fl Inc, Aegis Pharms, Apotex, Dr Reddys Labs Sa, Eugia Pharma, Ivax Sub Teva Pharms, Mylan, Pharmachemie, Roxane, Teva, and Zydus Pharms. and is included in twelve NDAs.

The generic ingredient in TAMOXIFEN is tamoxifen citrate. There are sixteen drug master file entries for this compound. Eleven suppliers are listed for this compound. Additional details are available on the tamoxifen citrate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Tamoxifen

A generic version of TAMOXIFEN was approved as tamoxifen citrate by ACTAVIS LABS FL INC on February 20th, 2003.

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Summary for TAMOXIFEN
US Patents:0
Applicants:11
NDAs:12
Drug Prices: Drug price information for TAMOXIFEN
DailyMed Link:TAMOXIFEN at DailyMed

US Patents and Regulatory Information for TAMOXIFEN

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Actavis Labs Fl Inc TAMOXIFEN CITRATE tamoxifen citrate TABLET;ORAL 070929-001 Feb 20, 2003 AB RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Roxane TAMOXIFEN CITRATE tamoxifen citrate TABLET;ORAL 076027-001 Feb 20, 2003 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Apotex TAMOXIFEN CITRATE tamoxifen citrate TABLET;ORAL 090878-001 Sep 23, 2011 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Actavis Labs Fl Inc TAMOXIFEN CITRATE tamoxifen citrate TABLET;ORAL 076179-002 Feb 20, 2003 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Eugia Pharma TAMOXIFEN CITRATE tamoxifen citrate TABLET;ORAL 213358-002 Aug 14, 2020 AB RX No 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

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