Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Ceftazidime is dosed at 25 mg/kg IM q8h in dogs, per Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted), Ceftazidime, printed p.220 (corpus p.247), DOGS item 2 — '25 mg/kg IM, SC every 8 hours'. Superscript 3 = Monfrinotti A, Ambros L, Prados AP, Kreil V, Rebuelto M. Pharmacokinetics of ceftazidime after intravenous, intramuscular and subcutaneous administration to dogs. J Vet Pharmacol Ther. 2010;33(2):204-207 (resolved in the Plumb's companion reference archive). — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Ceftazidime is used in dogs for Severe Pseudomonas infections, Severe Pseudomonas and gram-negative infections, Susceptible Pseudomonas aeruginosa infections (extra-label) — reserved use. Routes documented in dogs: IM, IV, SC. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 3 cited dose rules for Ceftazidime in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Fortaz
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IM | 25 mg/kg | q8h | 7-14 days | Severe Pseudomonas infections | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted), Ceftazidime, printed p.220 (corpus p.247), DOGS item 2 — '25 mg/kg IM, SC every 8 hours'. Superscript 3 = Monfrinotti A, Ambros L, Prados AP, Kreil V, Rebuelto M. Pharmacokinetics of ceftazidime after intravenous, intramuscular and subcutaneous administration to dogs. J Vet Pharmacol Ther. 2010;33(2):204-207 (resolved in the Plumb's companion reference archive). — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
| IV | 20 mg/kg | q8h | 7-14 days | Severe Pseudomonas and gram-negative infections | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Ceftazidime, Dosages, DOGS, item 2 (corpus PDF p.247 = printed p.220); the entry's superscript 3 is Monfrinotti et al., PK of ceftazidime after IV, IM and SC administration to dogs, J Vet Pharmacol Ther 2010;33(2):204-207. — Plumb's 10th ed (held) printed p.220, Ceftazidime monograph spanning p.219-220; page located 2026-08-05 from the book's own running heads, and carries this exact dose under the matching species heading. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
| SC | 25 mg/kg | q8h | 7-14 days | Susceptible Pseudomonas aeruginosa infections (extra-label) — reserved use | Moderate | Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Ceftazidime, Dosages, DOGS, item 2 (corpus PDF p.247 = printed p.220); superscript 3 = Monfrinotti et al., J Vet Pharmacol Ther 2010;33(2):204-207 (IV, IM and SC PK in dogs). — Plumb's 10th ed (held) printed p.219, Ceftazidime monograph spanning p.219-220; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 — Plumb's Veterinary Drug Handbook, 10th ed (held), Ceftazidime monograph, Dosages, printed p.220 (corpus PDF p.247), DOGS: "Susceptible Pseudomonas aeruginosa infections (extra-label): ... ceftazidime administered at 20 […]" Same heading, entry 1: "ceftazidime should be reserved for those dogs with P aeruginosa isolates that are resistant to or […]" [INDICATION NARROWED 2026-08-12, two readers.] |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
The sources disagree for this combination. The ranges below do not overlap on a comparable route. This is not an error in one of them — published veterinary references differ, and reconciling them for a particular patient is a clinical judgement.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 30 | IV | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.87 | 30 mg/kg i.v, i.m., s.c. q8h. Increased frequency for susceptible infections with Pseudomonas aeru |
| 4.4 | — | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.87 | Pseudomonas aeruginosa q4h or as CRI with a loading dose of 4.4 mg/kg followed by 4.1 mg/kg/h |
| 25–30 | SC | Papich Saunders Handbook of Veterinary Drugs, 4th edp.164 | • 25-30 mg/kg q8h SQ IM (there may be some pain from SQ and IM injection), |
Need the exact dose for your patient?
These ranges are per kg. Enter your dog's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits bacterial cell wall synthesis by binding to PBPs. Broad-spectrum with excellent gram-negative coverage including Pseudomonas.
Must reconstitute before use. Monitor for hypersensitivity reactions. Adjust dose in renal impairment.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Ceftazidime dose ranges in dogs, with cited source references: IM 25 mg/kg q8h; IV 20 mg/kg q8h; SC 25 mg/kg q8h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Ceftazidime in dogs: IM, IV, SC.
Cited course lengths for Ceftazidime in dogs include: 7-14 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Ceftazidime is indicated in dogs for: Severe Pseudomonas infections, Severe Pseudomonas and gram-negative infections, Susceptible Pseudomonas aeruginosa infections (extra-label) — reserved use.
These are general warnings for Ceftazidime across species; consult the dog dosing table above for species-specific guidance. Must reconstitute before use. Monitor for hypersensitivity reactions. Adjust dose in renal impairment.
Why a species-specific page? Ceftazidime pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.
| 1.2 |
| IV |
| Papich Saunders Handbook of Veterinary Drugs, 4th edp.164 |
| • Constant IV infusion: Give loading dose of 1.2 mg/kg, followed by 1.56 mg/ |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.