Cat · Felis catus · typical adult weight 2.50–7.00 kg
Norepinephrine is dosed at 0.05–1 mcg/kg/min IV CRI in cats, per Licht N, Rozanski EA, Rush JE. Vasopressor use in 41 critically ill cats (2007-2016). Canadian Veterinary Journal-Revue Veterinaire Canadienne. 2018;59:1175-1180. PMID: 30410173; Skelding AM, Valverde A. Sympathomimetics in veterinary species under anesthesia. Vet J. 2020;258:9. doi:10.1016/j.tvjl.2020.105455 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.971 (2026-08-01).. Norepinephrine is used in cats for Refractory hypotension. Routes documented in cats: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Norepinephrine in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Levophed
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 0.05–1 mcg/kg/min | CRI | Until stable | Refractory hypotension | Moderate | Licht N, Rozanski EA, Rush JE. Vasopressor use in 41 critically ill cats (2007-2016). Canadian Veterinary Journal-Revue Veterinaire Canadienne. 2018;59:1175-1180. PMID: 30410173; Skelding AM, Valverde A. Sympathomimetics in veterinary species under anesthesia. Vet J. 2020;258:9. doi:10.1016/j.tvjl.2020.105455 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.971 (2026-08-01). |
One of the cited rules is a continuous-rate-infusion regimen: IV 0.05–1 mcg/kg/min CRI. CRI regimens are delivered as a continuous infusion rather than discrete doses — verify the rate against the cited source before use.
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These ranges are per kg. Enter your cat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Potent alpha-1 and beta-1 adrenergic agonist with minimal beta-2 activity. Causes vasoconstriction (alpha-1) and increased cardiac contractility (beta-1).
First-line vasopressor for septic shock. IV CRI only. Tissue necrosis with extravasation — use central line if possible. Arrhythmogenic. Monitor blood pressure and perfusion parameters.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Norepinephrine dose range in cats, with cited source references: IV 0.05–1 mcg/kg/min CRI. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Norepinephrine in cats: IV.
Cited course lengths for Norepinephrine in cats include: Until stable. Duration depends on the indication — match it to the specific dose rule in the table above.
Norepinephrine is indicated in cats for: Refractory hypotension.
These are general warnings for Norepinephrine across species; consult the cat dosing table above for species-specific guidance. First-line vasopressor for septic shock. IV CRI only. Tissue necrosis with extravasation — use central line if possible. Arrhythmogenic. Monitor blood pressure and perfusion parameters.
Why a species-specific page? Norepinephrine 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.