Zosyn

Zosyn is a brand name of piperacillin/tazobactam, approved by the FDA in the following formulation(s):

ZOSYN (piperacillin sodium; tazobactam sodium - injectable; injection)

• 
  Manufacturer: WYETH PHARMS INC
  
  Approval date: October 22, 1993
  
  Strength(s): EQ 2GM BASE/VIAL;EQ 250MG BASE/VIAL ^[RLD][AP], EQ 36GM BASE/VIAL;EQ 4.5GM BASE/VIAL ^[RLD][AP], EQ 3GM BASE/VIAL;EQ 375MG BASE/VIAL ^[RLD][AP], EQ 4GM BASE/VIAL;EQ 500MG BASE/VIAL ^[RLD][AP]

Has a generic version of Zosyn been approved?

A generic version of Zosyn has been approved by the FDA. However, this does not mean that the product will necessarily be commercially available - possibly because of drug patents and/or drug exclusivity. The following products are equivalent to Zosyn and have been approved by the FDA:

PIPERACILLIN AND TAZOBACTAM (piperacillin sodium; tazobactam sodium injectable; injection)

• 
  Manufacturer: AUROBINDO PHARMA LTD
  
  Approval date: May 23, 2011
  
  Strength(s): EQ 2GM BASE/VIAL;EQ 250MG BASE/VIAL ^[AP], EQ 3GM BASE/VIAL;EQ 375MG BASE/VIAL ^[AP], EQ 4GM BASE/VIAL;EQ 500MG BASE/VIAL ^[AP]


• 
  Manufacturer: HOSPIRA INC
  
  Approval date: September 15, 2009
  
  Strength(s): EQ 2GM BASE/VIAL;EQ 250MG BASE/VIAL ^[AP], EQ 36GM BASE/VIAL;EQ 4.5GM BASE/VIAL ^[AP], EQ 3GM BASE/VIAL;EQ 375MG BASE/VIAL ^[AP], EQ 4GM BASE/VIAL;EQ 500MG BASE/VIAL ^[AP]


• 
  Manufacturer: INSTITUTO BIOCHEMICO
  
  Approval date: May 31, 2011
  
  Strength(s): EQ 2GM BASE/VIAL;EQ 250MG BASE/VIAL ^[AP], EQ 36GM BASE/VIAL;EQ 4.5GM BASE/VIAL ^[AP], EQ 3GM BASE/VIAL;EQ 375MG BASE/VIAL ^[AP], EQ 4GM BASE/VIAL;EQ 500MG BASE/VIAL ^[AP]


• 
  Manufacturer: SANDOZ
  
  Approval date: October 21, 2010
  
  Strength(s): EQ 2GM BASE/VIAL;EQ 250MG BASE/VIAL ^[AP], EQ 2GM BASE/VIAL;EQ 250MG BASE/VIAL ^[AP], EQ 3GM BASE/VIAL;EQ 375MG BASE/VIAL ^[AP], EQ 3GM BASE/VIAL;EQ 375MG BASE/VIAL ^[AP], EQ 4GM BASE/VIAL;EQ 500MG BASE/VIAL ^[AP], EQ 4GM BASE/VIAL;EQ 500MG BASE/VIAL ^[AP]

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Zosyn. These medications may be counterfeit and potentially unsafe. If you purchase medications online, be sure you are buying from a reputable and valid online pharmacy. Ask your health care provider for advice if you are unsure about the online purchase of any medication.

See also: About generic drugs.

Related Patents

Patents are granted by the U.S. Patent and Trademark Office at any time during a drug's development and may include a wide range of claims.

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  Compositions containing pipercillin and tazobactam useful for injection
  Patent 6,900,184
  Issued: May 31, 2005
  Inventor(s): Cohen; Jonathan Marc & Shah; Syed M. & Ofslager; Christian Luther & Fawzi; Mahdi
  Assignee(s): Wyeth Holdings Corporation
  The invention pertains to pharmaceutical compositions of Zosyn® piperacillin with tazobactam in the presence of a buffer, preferably citrate, a particulate formation inhibitor, preferably EDTA optionally an aminoglycoside which when frozen and thawed or lyophilized and reconstituted reform a solution which has decreased particulate formation.
  
  Patent expiration dates:
  
  
  • April 14, 2023
    
    ✓ 
    Patent use: METHOD OF TREATING BACTERIAL INFECTIONS
    ✓ 
    Drug product
  
  



• 
  Compositions containing piperacillin and tazobactam useful for injection
  Patent 7,915,229
  Issued: March 29, 2011
  Inventor(s): Cohen; Jonathan Marc & Shah; Syed Muzafar & Ofslager; Christian Luther & Fawzi; Mahdi Bakir
  Assignee(s): Wyeth Holdings Corporation
  An aminocarboxylic acid chelating agent, preferably EDTA, or a salt thereof has been found to be useful for inhibiting particulate formation in piperacillin/tazobactam parenteral combinations. The composition may also contain a buffer, preferably citrate, and optionally an aminoglycoside. The product may be in the form of a frozen composition that can be thawed for use. The product may also be in the form of a cryodesiccated powder that can be reconstituted by addition of an aqueous vehicle to reform a solution.
  
  Patent expiration dates:
  
  
  • April 14, 2023
    
    ✓ 
    Drug product
  
  

See also...

• Zosyn Consumer Information (Drugs.com)
• Zosyn Consumer Information (Wolters Kluwer)
• Zosyn Consumer Information (Cerner Multum)
• Zosyn Advanced Consumer Information (Micromedex)
• Zosyn AHFS DI Monographs (ASHP)
• Piperacillin/Tazobactam Consumer Information (Wolters Kluwer)
• Piperacillin and tazobactam Consumer Information (Cerner Multum)
• Piperacillin and tazobactam Intravenous Advanced Consumer Information (Micromedex)
• Piperacillin Sodium and Tazobactam Sodium AHFS DI Monographs (ASHP)