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Serving leading biopharmaceutical companies globally:

Express Scripts
Johnson and Johnson
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Harvard Business School
Boehringer Ingelheim
Baxter

Last Updated: September 29, 2023

ZOSYN Drug Patent Profile


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Which patents cover Zosyn, and what generic alternatives are available?

Zosyn is a drug marketed by Wyeth Pharms and Baxter Hlthcare Corp and is included in two NDAs. There are three patents protecting this drug and one Paragraph IV challenge.

This drug has forty-one patent family members in thirty-four countries.

The generic ingredient in ZOSYN is piperacillin sodium; tazobactam sodium. There are sixteen drug master file entries for this compound. Twenty-one suppliers are listed for this compound. Additional details are available on the piperacillin sodium; tazobactam sodium profile page.

DrugPatentWatch® Generic Entry Outlook for Zosyn

There is one Paragraph IV patent challenge for this drug. This may lead to patent invalidation or a license for generic production.

Indicators of Generic Entry

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Paragraph IV (Patent) Challenges for ZOSYN
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
ZOSYN For Injection piperacillin sodium; tazobactam sodium 12 g/1.5 g per vial (pharmacy bulk) 050684 1 2011-12-06

US Patents and Regulatory Information for ZOSYN

ZOSYN is protected by three US patents.

Patents protecting ZOSYN

Compositions containing pipercillin and tazobactam useful for injection
Patent Number: ⤷  Try a Trial
Patent Expiration: ⤷  Try a Trial
Patented Use: METHOD OF TREATING BACTERIAL INFECTIONS

Compositions containing piperacillin and tazobactam useful for injection
Patent Number: ⤷  Try a Trial
Patent Expiration: ⤷  Try a Trial

Compositions containing piperacillin and tazobactam useful for injection
Patent Number: ⤷  Try a Trial
Patent Expiration: ⤷  Try a Trial
Patented Use: METHOD OF TREATING BACTERIAL INFECTIONS

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Wyeth Pharms ZOSYN piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050684-001 Oct 22, 1993 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Baxter Hlthcare Corp ZOSYN IN PLASTIC CONTAINER piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050750-001 Feb 24, 1998 RX Yes Yes ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Wyeth Pharms ZOSYN piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050684-003 Oct 22, 1993 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Wyeth Pharms ZOSYN piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050684-002 Oct 22, 1993 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Wyeth Pharms ZOSYN piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050684-004 Oct 22, 1993 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Baxter Hlthcare Corp ZOSYN IN PLASTIC CONTAINER piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050750-002 Feb 24, 1998 RX Yes Yes ⤷  Try a Trial ⤷  Try a Trial Y ⤷  Try a Trial
Wyeth Pharms ZOSYN piperacillin sodium; tazobactam sodium INJECTABLE;INJECTION 050684-003 Oct 22, 1993 DISCN Yes No ⤷  Try a Trial ⤷  Try a Trial Y ⤷  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 ZOSYN

International Patents for ZOSYN

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

Country Patent Number Title Estimated Expiration
Russian Federation 2005135135 КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ПИПЕРАЦИЛЛИН И ТАЗОБАКТАМ,ПРИМЕНИМЫЕ ДЛЯ ИНЪЕКЦИИ ⤷  Try a Trial
South Korea 100824554 ⤷  Try a Trial
Colombia 5700796 COMPOSICIONES QUE CONTIENEN PIPERACILINA Y TAZOBACTAM UTILES PARA INYECCIONES ⤷  Try a Trial
China 1802179 Compositions containing piperacillin and tazobactam useful for injection ⤷  Try a Trial
South Korea 20060014375 COMPOSITIONS CONTAINING PIPERACILLIN AND TAZOBACTAM USEFUL FOR INJECTION ⤷  Try a Trial
Israel 171337 PHARMACEUTICAL COMPOSITIONS CONTAINING PIPERACILLIN AND TAZOBACTAM, USES THEREOF AND PROCESSES FOR THE PREPARATION THEREOF ⤷  Try a Trial
Brazil PI0409450 composições que contêm peperacilina e tazobactamo, úteis para injeção ⤷  Try a Trial
>Country >Patent Number >Title >Estimated Expiration

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Serving leading biopharmaceutical companies globally:

McKinsey
Moodys
McKesson
Express Scripts
Baxter
Dow

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