Cat · Felis catus · typical adult weight 2.50–7.00 kg
Phenobarbital Compounded Oral is dosed at 1–2 mg/kg PO q12h in cats, per Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1036 (2026-08-01). — Plumb's 10th ed (held) printed p.1006, Phenobarbital monograph spanning p.1006-1010; 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. Phenobarbital Compounded Oral is used in cats for Seizure disorder. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Phenobarbital Compounded Oral in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Compounded Phenobarbital Solution
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 1–2 mg/kg | q12h | Lifelong; monitor serum levels | Seizure disorder | Moderate |
| Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1036 (2026-08-01). — Plumb's 10th ed (held) printed p.1006, Phenobarbital monograph spanning p.1006-1010; 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 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 1.5–3 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.333 | 1.5-3 mg/kg p.o. q12h. |
| 2–4 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.654 | • 2-4 mg/kg q12h PO. |
| 10–20 | IV | Papich Saunders Handbook of Veterinary Drugs, 4th edp.654 | • Status epilepticus: Administer in increments of 10-20 mg/kg IV to effect. |
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.
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Enhances GABA-A receptor activity and reduces glutamate excitability. Long-acting anticonvulsant. Compounded for precise small-animal dosing.
Controlled substance (CIV). Hepatotoxic with chronic use — monitor liver values. Compounded formulation allows precise small-patient dosing. Verify potency testing with pharmacy.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Phenobarbital Compounded Oral dose range in cats, with cited source references: PO 1–2 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Phenobarbital Compounded Oral in cats: PO.
Cited course lengths for Phenobarbital Compounded Oral in cats include: Lifelong; monitor serum levels. Duration depends on the indication — match it to the specific dose rule in the table above.
Phenobarbital Compounded Oral is indicated in cats for: Seizure disorder.
These are general warnings for Phenobarbital Compounded Oral across species; consult the cat dosing table above for species-specific guidance. Controlled substance (CIV). Hepatotoxic with chronic use — monitor liver values. Compounded formulation allows precise small-patient dosing. Verify potency testing with pharmacy.
Why a species-specific page? Phenobarbital Compounded Oral 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.