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 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. Fifteen 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
Summary for ZOSYN
International Patents: | 41 |
US Patents: | 3 |
Applicants: | 1 |
NDAs: | 2 |
Raw Ingredient (Bulk) Api Vendors: | 4 |
Patent Applications: | 1 |
Formulation / Manufacturing: | see details |
Drug Prices: | Drug price information for ZOSYN |
What excipients (inactive ingredients) are in ZOSYN? | ZOSYN excipients list |
DailyMed Link: | ZOSYN at DailyMed |


Anatomical Therapeutic Chemical (ATC) Classes for ZOSYN
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: See Plans and Pricing
Patent Expiration: See Plans and Pricing
Patented Use: METHOD OF TREATING BACTERIAL INFECTIONS
Compositions containing piperacillin and tazobactam useful for injection
Patent Number: See Plans and Pricing
Patent Expiration: See Plans and Pricing
Compositions containing piperacillin and tazobactam useful for injection
Patent Number: See Plans and Pricing
Patent Expiration: See Plans and Pricing
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 | See Plans and Pricing | See Plans and Pricing | Y | See Plans and Pricing | |||
Wyeth Pharms | ZOSYN IN PLASTIC CONTAINER | piperacillin sodium; tazobactam sodium | INJECTABLE;INJECTION | 050750-001 | Feb 24, 1998 | RX | Yes | Yes | See Plans and Pricing | See Plans and Pricing | Y | See Plans and Pricing | |||
Wyeth Pharms | ZOSYN | piperacillin sodium; tazobactam sodium | INJECTABLE;INJECTION | 050684-003 | Oct 22, 1993 | DISCN | Yes | No | See Plans and Pricing | See Plans and Pricing | Y | See Plans and Pricing | |||
Wyeth Pharms | ZOSYN | piperacillin sodium; tazobactam sodium | INJECTABLE;INJECTION | 050684-002 | Oct 22, 1993 | DISCN | Yes | No | See Plans and Pricing | See Plans and Pricing | Y | See Plans and Pricing | |||
Wyeth Pharms | ZOSYN | piperacillin sodium; tazobactam sodium | INJECTABLE;INJECTION | 050684-004 | Oct 22, 1993 | DISCN | Yes | No | See Plans and Pricing | See Plans and Pricing | Y | See Plans and Pricing | |||
Wyeth Pharms | ZOSYN IN PLASTIC CONTAINER | piperacillin sodium; tazobactam sodium | INJECTABLE;INJECTION | 050750-002 | Feb 24, 1998 | RX | Yes | Yes | See Plans and Pricing | See Plans and Pricing | Y | See Plans and Pricing | |||
>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Exclusivity Expiration |
International Patents for ZOSYN
See the table below for patents covering ZOSYN around the world.
Country | Patent Number | Title | Estimated Expiration |
---|---|---|---|
Portugal | 1468697 | See Plans and Pricing | |
World Intellectual Property Organization (WIPO) | 2004091666 | See Plans and Pricing | |
United Kingdom | 0407853 | See Plans and Pricing | |
Ecuador | SP056100 | COMPOSICIONES QUE CONTIENEN PIPERACILINA Y TAZOBACTAM ĂšTILES PARA INJECCIONES | See Plans and Pricing |
Taiwan | I308069 | See Plans and Pricing | |
China | 1802179 | Compositions containing piperacillin and tazobactam useful for injection | See Plans and Pricing |
>Country | >Patent Number | >Title | >Estimated Expiration |