Cat · Felis catus · typical adult weight 2.50–7.00 kg
Phenylephrine Injectable is dosed at 0.001–0.003 mg/kg bolus or CRI IV Bolus q5min or CRI to effect in cats, per Veterinary Anesthesia Textbooks; Plumb's Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Plumb's 10th ed (held) printed p.1015, Phenylephrine monograph spanning p.1015-1016; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — figure located 2026-08-05 at Plumb's 10th ed printed p.1016, Phenylephrine monograph; the page cited previously does not carry it. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Phenylephrine Injectable is used in cats for Severe hypotension under anesthesia. Routes documented in cats: IV. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Phenylephrine Injectable in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Neo-Synephrine Injectable
| 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 Veterinary Drug Handbook, 10th ed (2023, held copy; the original seed cited the 9th, which was never consulted) — Plumb's 10th ed (held) printed p.1015, Phenylephrine monograph spanning p.1015-1016; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — figure located 2026-08-05 at Plumb's 10th ed printed p.1016, Phenylephrine monograph; the page cited previously does not carry it. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mcg/kg) | Route | Source | As printed |
|---|---|---|---|
| 10 | IV | Papich Saunders Handbook of Veterinary Drugs, 4th edp.660 | • 10 mcg/kg (0.01 mg/kg) q15min IV as needed or 0.1 mg/kg q15min IM or SQ. |
| 3 | IV | Papich Saunders Handbook of Veterinary Drugs, 4th edp.660 | • CRI: 10 mcg/kg (0.01 mg/kg) IV, followed by 3 mcg/kg/min IV. |
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 0.01 | IV | Papich Saunders Handbook of Veterinary Drugs, 4th edp.660 | • 10 mcg/kg (0.01 mg/kg) q15min IV as needed or 0.1 mg/kg q15min IM or SQ. |
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.
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Selective alpha-1 adrenergic agonist causing peripheral vasoconstriction, increasing systemic vascular resistance and blood pressure without significant cardiac stimulation.
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 cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Phenylephrine Injectable dose range in cats, with cited source references: IV 0.001–0.003 mg/kg bolus or CRI Bolus q5min or CRI to effect. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Phenylephrine Injectable in cats: IV.
Cited course lengths for Phenylephrine Injectable in cats include: During anesthesia; discontinue when hemodynamically stable. Duration depends on the indication — match it to the specific dose rule in the table above.
Phenylephrine Injectable is indicated in cats for: Severe hypotension under anesthesia.
These are general warnings for Phenylephrine Injectable across species; consult the cat dosing table above for species-specific guidance. Reflex bradycardia common. Extravasation causes tissue necrosis — use central line when possible. Contraindicated in severe hypertension. Titrate to effect.
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 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.
| 0.1 |
| IV |
| Papich Saunders Handbook of Veterinary Drugs, 4th edp.660 |
| • 10 mcg/kg (0.01 mg/kg) q15min IV as needed or 0.1 mg/kg q15min IM or SQ. |
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.