Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Methocarbamol is dosed at 44–220 mg/kg IV q8-12h to effect; total max 330 mg/kg/day in dogs, per Plumb's Veterinary Drug Handbook, 9th Ed, p.855 (corpus PDF p.882) — Methocarbamol, Dosages, DOGS/CATS, Injectable label dosage; q8h IV interval corroborated by Papich 5th Ed p.509 (PDF p.537) 'Dogs and Cats: 44 mg/kg q8h PO or IV on the first day'. Methocarbamol is used in dogs for Tremorgenic mycotoxin poisoning, strychnine, muscle spasm, Muscle spasm, intervertebral disk disease adjunct. Routes documented in dogs: IV, PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 2 cited dose rules for Methocarbamol in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Robaxin-V
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 44–220 mg/kg | q8-12h to effect; total max 330 mg/kg/day | Until toxicosis resolves | Tremorgenic mycotoxin poisoning, strychnine, muscle spasm | Strong | Plumb's Veterinary Drug Handbook, 9th Ed, p.855 (corpus PDF p.882) — Methocarbamol, Dosages, DOGS/CATS, Injectable label dosage; q8h IV interval corroborated by Papich 5th Ed p.509 (PDF p.537) 'Dogs and Cats: 44 mg/kg q8h PO or IV on the first day' |
| PO | 15–44 mg/kg | q8h | Short-term | Muscle spasm, intervertebral disk disease adjunct | Moderate | ROBAXIN-V TABLETS - Methocarbamol Tablet [US Product Label for Dogs and Cats]. Zoetis; 2003. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=090a3d3d-92c3-4c30-a648-436461f81702; ROBAXIN - Methocarbamol Tablets [AU Product Label for Dogs and Cats]. Elanco Australasia Pty Ltd; 2021. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=090a3d3d-92c3-4c30-a648-436461f81702 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.882 (2026-08-01). |
Need the exact dose for your patient?
These ranges are per kg. Enter your dog's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Centrally-acting skeletal muscle relaxant. Exact mechanism unclear; likely depresses polysynaptic reflexes in the spinal cord.
FDA-approved for veterinary use (Robaxin-V). Sedation, drooling. IV: give slowly (do not exceed 2 ml/min). Used for tremors, muscle spasms, strychnine poisoning, and metaldehyde toxicosis.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Methocarbamol dose ranges in dogs, with cited source references: IV 44–220 mg/kg q8-12h to effect; total max 330 mg/kg/day; PO 15–44 mg/kg q8h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Methocarbamol in dogs: IV, PO.
Cited course lengths for Methocarbamol in dogs include: Until toxicosis resolves; Short-term. Duration depends on the indication — match it to the specific dose rule in the table above.
Methocarbamol is indicated in dogs for: Tremorgenic mycotoxin poisoning, strychnine, muscle spasm, Muscle spasm, intervertebral disk disease adjunct.
These are general warnings for Methocarbamol across species; consult the dog dosing table above for species-specific guidance. FDA-approved for veterinary use (Robaxin-V). Sedation, drooling. IV: give slowly (do not exceed 2 ml/min). Used for tremors, muscle spasms, strychnine poisoning, and metaldehyde toxicosis.
Why a species-specific page? Methocarbamol pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — 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.