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OmniRx › Tools › Generic competition check › Piperacillin Sodium; Tazobactam Sodium

Generic competition · all medicines · read 12 November 2026

Is there a generic of Piperacillin Sodium; Tazobactam Sodium, and who makes it?

Piperacillin Sodium; Tazobactam Sodium appears in 2 dosage-form groups in the FDA Orange Book as of 12 November 2026, with 9 generic makers listed as marketed across them. 1 group has a brand listed as marketed and no generic listed as marketed. The data does not state why, and it does not state that one is coming. Where both are dated, the first generic approval came 15.9 years after the first brand approval. This is the Orange Book's listing, not a forecast.

Compiled and checked by Vincent Wesley Couey (ORCID 0009-0005-6869-308X) from the Orange Book data files, downloaded 12 November 2026.

Not medical advice. This page reports what the FDA's Orange Book lists, not what a pharmacy has in stock, what anything costs, or whether a generic is right for you. Ask your pharmacist or prescriber about your own medicine.
Piperacillin Sodium; Tazobactam Sodium2 dosage-form groups in the Orange Book
9generic makers listed
  1. Piperacillin Sodium; Tazobactam Sodium appears in 2 dosage-form groups in the FDA Orange Book as of 12 November 2026, with 9 generic makers listed as marketed across them.
  2. 1 group has a brand listed as marketed and no generic listed as marketed. The data does not state why, and it does not state that one is coming.
  3. Where both are dated, the first generic approval came 15.9 years after the first brand approval.
  4. Patents and exclusivities are shown as listed by the application holder; the Orange Book does not rule on them, and a listed patent is not a statement that a generic is blocked. This says nothing about price, supply or quality.

Injectable, Injection

Four or more generic makers listed

Brand listed as marketed: Zosyn In Plastic Container. 9 generic makers with 36 generic products listed as marketed; the first generic approval is dated 15 September 2009.

19901995200020052010201520202025203009brand 1993Sandoz Inc, first approval 21 October 2010Eugia Pharma Specialities Ltd, first approval 23 May 2011Acs Dobfar Spa, first approval 31 May 2011Onesource Specialty Pte Ltd, first approval 15 August 2014Milla Pharmaceuticals Inc, first approval 13 January 2017Apotex Inc, first approval 17 March 2017Fresenius Kabi Anti Infectives Srl, first approval 11 May 2018Shandong Anxin Pharmaceutical Co Ltd, first approval 10 August 2018Sagent Pharmaceuticals Inc, first approval 16 February 2021data date
generic makers listed as marketed, by first approvallisted patent expiryexclusivity end
Generic maker (applicant)First approvalProducts
Sandoz Inc21 October 20105
Eugia Pharma Specialities Ltd23 May 20113
Acs Dobfar Spa31 May 20114
Onesource Specialty Pte Ltd15 August 20143
Milla Pharmaceuticals Inc13 January 20175
Apotex Inc17 March 20174
Fresenius Kabi Anti Infectives Srl11 May 20184
Shandong Anxin Pharmaceutical Co Ltd10 August 20184
Sagent Pharmaceuticals Inc16 February 20214

Patents and exclusivities still listed

No unexpired patent or exclusivity is listed against the marketed brand products in this group.

Powder, Intravenous

Brand listed, no generic listed as marketed

Brand listed as marketed: Piperacillin And Tazobactam And Sodium Chloride In Duplex Container. No generic is listed as marketed.

20202025203001brand 2025data date
generic makers listed as marketed, by first approvallisted patent expiryexclusivity end

Patents and exclusivities still listed

No unexpired patent or exclusivity is listed against the marketed brand products in this group.

US Food and Drug Administration, Orange Book data files, downloaded 12 November 2026. A listed patent is not a ruling that a generic is blocked, and no figure here says anything about price, supply or quality. Check the Orange Book.

Where can you go from this result?

Open it in the check to search another medicine, or see every brand with no generic listed. The FDA explains generic approval in how generic drugs are approved and the FDA generic drug facts, and the Orange Book itself is the FDA Orange Book. To check what is available now, ask your pharmacist, and see the FDA drug shortages page.