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Cefoperazone for Animals: Mechanism, Doses by Species & Brands

Cefoperazone is a third-generation semi-synthetic cephalosporin with a broad spectrum of activity [1][2]. In the EU it is used for intramammary treatment of clinical mastitis in lactating cattle [1].

Drug class
Third-generation cephalosporin (beta-lactam) antibacterial
Brands on this site
Gardplus

What cefoperazone is used for

  • Intramammary treatment of clinical mastitis in lactating cattle — 250 mg cefoperazone sodium per infected quarter once, or 100 mg cefoperazone dihydrate per quarter twice 24 hours apart (EU) [1].

How cefoperazone works (mechanism of action)

As a beta-lactam, it inhibits the penicillin-binding proteins and so bacterial cell wall synthesis [3]. Biliary elimination of newer cephalosporins such as cefoperazone may be appreciable [2].

Safety, contraindications and precautions

  • Hypersensitivity reactions have occurred with cephalosporins, with cross-reactivity to penicillin allergies possible [2].
  • Cephalosporin injections IM can be painful, and repeated IV administration may lead to local phlebitis [2].

Brands that contain cefoperazone

BrandCompanyContainsMarket
GardplusVirbac IndiaCefoperazone + SulbactamIndia

Frequently asked questions

What generation is cefoperazone?

Cefoperazone is a third-generation cephalosporin [1][2].

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R
Medically reviewed by
Dr. Ravi Baraiya, B.V.Sc.
Veterinarian · Reviewed 2 Nov 2026

References

  1. Cefoperazone — Summary report (Committee for Veterinary Medicinal Products)European Medicines Agency · Regulator database
    Passage read from this source
    Cefoperazone is a third generation semi-synthetic cephalosporin with a broad spectrum of activity
    Cefoperazone sodium and -dihydrate are used for intramammary treatment of clinical mastitis in lactating cattle.
    Dose levels used are 250 mg cefoperazone sodium per infected quarter once
    100 mg cefoperazone dihydrate per infected quarter twice with a dosing interval of 24 hours.
  2. Cephalosporins and Cephamycins Use in AnimalsMerck Veterinary Manual · 2025 · Veterinary reference
    Passage read from this source
    Biliary elimination of the newer cephalosporins (eg, cefoperazone) may be appreciable.
    Hypersensitivity reactions of several forms have occurred, with cross-reactivity to penicillin allergies possible.
    Cephalosporins injections IM can be painful, and repeated IV administration may lead to local phlebitis.
  3. Beta-lactam Antimicrobial Use in AnimalsMerck Veterinary Manual · 2025 · Veterinary reference
    Passage read from this source
    The beta-lactam drug mimics the PBP substrate, thus inhibiting the PBP and subsequent cell wall synthesis.

For veterinary professionals. Information supports — never replaces — clinical judgement; always check the current product label and local regulations.

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