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ZOSYN Drug Profile

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When do Zosyn patents expire, and when can generic versions of Zosyn launch?

Zosyn is a drug marketed by Wyeth Pharms and is included in two NDAs. There are four patents protecting this drug and two Paragraph IV challenges.

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

Summary for ZOSYN

International Patents:	41
US Patents:	3
Applicants:	1
NDAs:	2
Suppliers / Packagers:	1
Bulk Api Vendors:	59
Formulation / Manufacturing:	see details
Drug Prices:	Drug price information for ZOSYN
DailyMed Link:	ZOSYN at DailyMed

Pharmacology for ZOSYN

Drug Class	beta Lactamase Inhibitor Penicillin-class Antibacterial
Mechanism of Action	beta Lactamase Inhibitors

US Patents and Regulatory Information for ZOSYN

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	AP	RX	Yes	Yes			Y
Wyeth Pharms	ZOSYN IN PLASTIC CONTAINER	piperacillin sodium; tazobactam sodium	INJECTABLE;INJECTION	050750-001	Feb 24, 1998		RX	Yes	Yes			Y
Wyeth Pharms	ZOSYN IN PLASTIC CONTAINER	piperacillin sodium; tazobactam sodium	INJECTABLE;INJECTION	050750-002	Feb 24, 1998		RX	Yes	Yes			Y
Wyeth Pharms	ZOSYN	piperacillin sodium; tazobactam sodium	INJECTABLE;INJECTION	050684-003	Oct 22, 1993	AP	RX	Yes	Yes			Y
Wyeth Pharms	ZOSYN	piperacillin sodium; tazobactam sodium	INJECTABLE;INJECTION	050684-002	Oct 22, 1993	AP	RX	Yes	Yes			Y
Wyeth Pharms	ZOSYN	piperacillin sodium; tazobactam sodium	INJECTABLE;INJECTION	050684-004	Oct 22, 1993	AP	RX	Yes	Yes			Y

Paragraph IV (Patent) Challenges for ZOSYN

Drugname	Dosage	Strength	RLD	Date
	For Injection	12 g/1.5 g per vial (pharmacy bulk)
	For Injection	2.25 g/vial, 3.375 g/vial, 4.5 g/via

International Patents for ZOSYN

Country	Document Number	Estimated Expiration
United Kingdom	2400557
China	1802179
European Patent Office	1468697
Switzerland	695185
Argentina	043863
Cyprus	1108064