Home/Medicines/Ceftazidime
All medicines

Ceftazidime

Prescription
Third-Generation Cephalosporin (Anti-Pseudomonal)
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
2 available
Formulations
1

Mechanism of action

Extended-spectrum cephalosporin with exceptional activity against Pseudomonas aeruginosa and most gram-negative bacilli. Stable against many beta-lactamases.

At a glance

Class
Third-Generation Cephalosporin (Anti-Pseudomonal)
Schedule
Prescription
Storage
Powder at room temperature; reconstituted stable 24h room temperature or 7 days refrigerated

Dosing

🐕

Dog

Reserved for serious Pseudomonas infections and multidrug-resistant gram-negativ
Dose
30 mg/kg
Route
IV, IM, SQ
Frequency
q6–8h
🐈

Cat

Used for serious gram-negative infections including Pseudomonas
Dose
30 mg/kg
Route
IV, IM
Frequency
q8h
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Formulations

💊

Other — 1

Strength

Storage

Powder at room temperature; reconstituted stable 24h room temperature or 7 days refrigerated

Safety

Monitoring parameters

Culture and sensitivityRenal functionCBC with prolonged use
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Interactions

No documented interactions.

Brands

Other markets

Fortaz
Tazicef

FAQs

Frequently asked questions

What is Ceftazidime?
Ceftazidime is a third-generation cephalosporin (anti-pseudomonal) used in pets. Extended-spectrum cephalosporin with exceptional activity against Pseudomonas aeruginosa and most gram-negative bacilli. Stable against many beta-lactamases.
What is Ceftazidime used for in pets?
Ceftazidime is used in veterinary medicine for: Reserved for serious Pseudomonas infections and multidrug-resistant gram-negativ; Used for serious gram-negative infections including Pseudomonas.
What is the Ceftazidime dose for dogs?
For dogs, Ceftazidime is typically dosed as follows — Reserved for serious Pseudomonas infections and multidrug-resistant gram-negativ: 30 mg/kg IV/IM/SQ q6–8h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Ceftazidime dose for cats?
For cats, Ceftazidime is typically dosed as follows — Used for serious gram-negative infections including Pseudomonas: 30 mg/kg IV/IM q8h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Ceftazidime need a prescription?
Yes. Ceftazidime is a prescription medication and should only be administered under veterinary supervision.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

References

References

The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.

Textbooks & handbooks — 5

  • Plumb's Veterinary Drug Handbook
  • Withrow & MacEwen's Small Animal Clinical Oncology
  • Merck Veterinary Manual
  • NRC Nutrient Requirements of Dogs and Cats
  • Veterinary Pharmacology and Therapeutics (Riviere & Papich)

Clinical guidelines & consensus — 4

  • ASPCA Animal Poison Control Center Guidelines
  • AAHA Diabetes Management Guidelines
  • ASPCA Poison Control Guidelines
  • RECOVER CPR Guidelines

Journals & peer-reviewed studies — 2

  • EPIC Study (J Vet Intern Med 2016)
  • JVIM FAT CAT Study

Regulatory & approvals — 1

  • CDSCO Veterinary Drug Approval Registry (1969–2026)

Databases — 1

  • Washington State University VCPL MDR1 Database

Related medicines

Other medicines in the same class (Third-Generation Cephalosporin).

Cefixime
Rx
Inhibits bacterial cell wall synthesis by binding PBPs. Third-generation spectrum covers most gram-negative bacteria; less activity against gram-positive than first/second generation. Well absorbed orally.
dogcat
Ceftiofur Sodium
Rx
Veterinary-specific third-generation cephalosporin with broad gram-negative spectrum including Pasteurella, E. coli, Salmonella, and Klebsiella. Active metabolite desfuroylceftiofur retains antibacterial activity. FDA-approved for dogs.
dogcat
Need help? 💬
Chat with us on WhatsApp