Phenylephrine Injectable for Cat
Cat · Felis catus · typical adult weight 2.50–7.00 kg
Phenylephrine Injectable is used in cat for Severe hypotension under anesthesia. Routes documented in cat: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Phenylephrine Injectable in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Neo-Synephrine Injectable
Dose ranges
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 0.001–0.003 mg/kg bolus or CRI | Bolus q5min or CRI to effect | During anesthesia; discontinue when hemodynamically stable | Severe hypotension under anesthesia | Moderate | Veterinary Anesthesia Textbooks; Plumb's 9th Ed |
Continuous-rate infusion (CRI) in cat
One of the cited rules is a continuous-rate-infusion regimen: IV 0.001–0.003 mg/kg bolus or CRI Bolus q5min or CRI to effect. CRI regimens are delivered as a continuous infusion rather than discrete doses — verify the rate against the cited source before use.
Need the exact dose for your patient?
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.
Mechanism of action
Selective alpha-1 adrenergic agonist causing peripheral vasoconstriction, increasing systemic vascular resistance and blood pressure without significant cardiac stimulation.
Side effects & warnings
Reflex bradycardia common. Extravasation causes tissue necrosis — use central line when possible. Contraindicated in severe hypertension. Titrate to effect.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Other Miscellaneous drugs with cat dosing
Phenylephrine Injectable dosing in other species
Why a species-specific page? Phenylephrine Injectable pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cat — 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.