Cat · Felis catus · typical adult weight 2.50–7.00 kg
Iohexol is used in cats for Contrast radiography/CT. Routes documented in cats: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Iohexol in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Omnipaque
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | Monitor for anaphylactoid reactions | Single administration | Single study | Contrast radiography/CT | Strong | Caine A, Ma MH, Herrtage M, Sparks T, Genain MA. Measurements and Visibility of the Pancreatic Ducts on Computed Tomography in 78 Cats Without Clinical Evidence of Pancreatitis. Animals (Basel). 2025;15(19):2857. doi:10.3390/ani15192857 — Materials and Methods: "Images were acquired prior to and post administration of iodinated intravenous contrast media (2 […]" Corroborating feline CT-angiography protocol at the equivalent iodine dose: Dekkers MM, Devriendt N, de Rooster H, Saunders J, Stock E. Anatomical variations in the tributaries of the normal feline extrahepatic portal system: evaluation with CT angiography. J Feline Med Surg. 2025;27(9). doi:10.1177/1098612X251368447 — "Intravenous contrast consisted of a non-ionic iodinated contrast agent (600-700 mg I/kg body weight)." These are published feline CT contrast protocols, i.e. what was administered in a study, not formulary dosing recommendations. Drug monograph background: Plumb's Veterinary Drug Handbook, 10th ed (2023), Iohexol, printed p.687-688. [CITATION CORRECTED 2026-08-12 — the served 2 mL/kg IV figure is printed on Plumb's printed p.688 under the BIRDS heading, not under CATS.] |
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Non-ionic, low-osmolar iodinated contrast agent. Attenuates X-rays proportional to iodine concentration, providing contrast in vessels, urinary tract, and CNS.
Nephrotoxic — ensure hydration. Rare anaphylactoid reactions. Safe if aspirated or if GI perforation (unlike barium). Can be used for myelography (intrathecal). Warm to body temperature.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Iohexol dose range in cats, with cited source references: IV Monitor for anaphylactoid reactions Single administration. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Iohexol in cats: IV.
Cited course lengths for Iohexol in cats include: Single study. Duration depends on the indication — match it to the specific dose rule in the table above.
Iohexol is indicated in cats for: Contrast radiography/CT.
These are general warnings for Iohexol across species; consult the cat dosing table above for species-specific guidance. Nephrotoxic — ensure hydration. Rare anaphylactoid reactions. Safe if aspirated or if GI perforation (unlike barium). Can be used for myelography (intrathecal). Warm to body temperature.
Why a species-specific page? Iohexol pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cats — 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.