Cat · Felis catus · typical adult weight 2.50–7.00 kg
Methocarbamol Compounded Oral is dosed at 22–44 mg/kg PO q8-12h in cats, per Plumb's Veterinary Drug Handbook, 10th ed, Methocarbamol monograph, corpus PDF p.882. DOGS/CATS (label dosage, FDA-approved): Injectable - "For relief of moderate conditions: 44 mg/kg IV initial dose"; "For controlling severe effects of strychnine and tetanus: 55 - 220 mg/kg IV initial dose... The […]" Oral (tablets) - "132 mg/kg PO on Day 1 in 2 or 3 equally divided doses (ie, every 8 to 12 hours), then 66 - 132 […]" DOGS, intervertebral disk disease (extra-label): "Anecdotal dosages of 15 - 20 mg/kg PO every 8 hours are usually noted." HORSES (label dosage, FDA-approved): "For moderate conditions: 4.4 - 22 mg/kg IV to effect"; "For severe conditions (tetanus): 22 - 55 mg/kg IV". — RETRIEVED FINDING - CHANGE REQUIRED (retrieved 2026-08-19): Dogs and Cats: 44 mg/kg q8h PO or IV on the first day, and then 22-44 mg/kg q8h PO. Up to 130 mg/kg for severe conditions. — Papich, Saunders Handbook of Veterinary Drugs, held 4th ed (2016), printed p.509 / corpus p.537 | ORIGINAL SOURCE THE BOOK CITES (2026-08-20): the dose row carries superscript 1 — "22 mg/kg IV to effect1 * Ga6ape,(-,: Concurrent use may result in resp" — which resolves in the monograph's own reference list to: ROBAXIN-V INJECTABLE - Methocarbamol Liquid (Solution) [US Product Label for Dogs, Cats, and Horses]. Kinetic Technologies, LLC; 2017. This records what the handbook attributes the figure to. It is NOT a statement that the reference was read or that it validates the dose.. Methocarbamol Compounded Oral is used in cats for Muscle spasms. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Methocarbamol Compounded Oral in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Compounded Methocarbamol
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 22–44 mg/kg | q8-12h | 3-7 days | Muscle spasms | Weak | Plumb's Veterinary Drug Handbook, 10th ed, Methocarbamol monograph, corpus PDF p.882. DOGS/CATS (label dosage, FDA-approved): Injectable - "For relief of moderate conditions: 44 mg/kg IV initial dose"; "For controlling severe effects of strychnine and tetanus: 55 - 220 mg/kg IV initial dose... The […]" Oral (tablets) - "132 mg/kg PO on Day 1 in 2 or 3 equally divided doses (ie, every 8 to 12 hours), then 66 - 132 […]" DOGS, intervertebral disk disease (extra-label): "Anecdotal dosages of 15 - 20 mg/kg PO every 8 hours are usually noted." HORSES (label dosage, FDA-approved): "For moderate conditions: 4.4 - 22 mg/kg IV to effect"; "For severe conditions (tetanus): 22 - 55 mg/kg IV". — RETRIEVED FINDING - CHANGE REQUIRED (retrieved 2026-08-19): Dogs and Cats: 44 mg/kg q8h PO or IV on the first day, and then 22-44 mg/kg q8h PO. Up to 130 mg/kg for severe conditions. — Papich, Saunders Handbook of Veterinary Drugs, held 4th ed (2016), printed p.509 / corpus p.537 | ORIGINAL SOURCE THE BOOK CITES (2026-08-20): the dose row carries superscript 1 — "22 mg/kg IV to effect1 * Ga6ape,(-,: Concurrent use may result in resp" — which resolves in the monograph's own reference list to: ROBAXIN-V INJECTABLE - Methocarbamol Liquid (Solution) [US Product Label for Dogs, Cats, and Horses]. Kinetic Technologies, LLC; 2017. This records what the handbook attributes the figure to. It is NOT a statement that the reference was read or that it validates the dose. |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
The sources disagree for this combination. The ranges below do not overlap on a comparable route. This is not an error in one of them — published veterinary references differ, and reconciling them for a particular patient is a clinical judgement.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 20–45 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.273 | 20-45 mg/kg p.o. q8h. Very high doses may be required for tetanus. It is recommended that the dose do |
| 330 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.273 | or tetanus. It is recommended that the dose does not exceed 330 mg/kg, although serious toxicity or death has not been reported after overdoses. |
| 44 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.537 | • 44 mg/kg q8h PO or IV on the first day, and then 22-44 mg/kg q8h PO. Up to |
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Centrally acting muscle relaxant that depresses polysynaptic reflexes. Exact mechanism unknown but likely involves carbamic acid ester CNS depression.
Compounded for easier dosing in small animals. Sedation and weakness at higher doses. Do not combine with other CNS depressants. Available commercially as tablets/injection.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Methocarbamol Compounded Oral dose range in cats, with cited source references: PO 22–44 mg/kg q8-12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Methocarbamol Compounded Oral in cats: PO.
Cited course lengths for Methocarbamol Compounded Oral in cats include: 3-7 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Methocarbamol Compounded Oral is indicated in cats for: Muscle spasms.
These are general warnings for Methocarbamol Compounded Oral across species; consult the cat dosing table above for species-specific guidance. Compounded for easier dosing in small animals. Sedation and weakness at higher doses. Do not combine with other CNS depressants. Available commercially as tablets/injection.
Why a species-specific page? Methocarbamol 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.
| 22–44 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.537 | • 44 mg/kg q8h PO or IV on the first day, and then 22-44 mg/kg q8h PO. Up to |
| 130 | — | Papich Saunders Handbook of Veterinary Drugs, 4th edp.537 | 130 mg/kg for severe conditions. |
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.