Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Methocarbamol (Equine Injectable) is dosed at 4.4–22 mg/kg IV q8-12h in horses, per FDA NADA Label. Methocarbamol (Equine Injectable) is used in horses for Exertional rhabdomyolysis (tying up), muscle spasm, Muscle spasm, rhabdomyolysis (tying up). Routes documented in horses: IV. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 2 cited dose rules for Methocarbamol (Equine Injectable) in horses, 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 | 4.4–22 mg/kg | q8-12h | 1-3 treatments | Exertional rhabdomyolysis (tying up), muscle spasm | Strong | FDA NADA Label |
| IV | 4.4–22 mg/kg | q12-24h or to effect | — | Muscle spasm, rhabdomyolysis (tying up) | Moderate | ROBAXIN-V INJECTABLE - Methocarbamol Liquid (Solution) [US Product Label for Dogs, Cats, and Horses]. Kinetic Technologies, LLC; 2017. 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). |
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Centrally-acting skeletal muscle relaxant that depresses multisynaptic reflex arcs. Does not directly relax skeletal muscle or depress the neuromuscular junction.
For horses and cattle. IV injection only — administer slowly (not more than 2ml/min per kg BW). May cause sedation, salivation, and ataxia. Do not use in animals with known renal impairment.
Species-specific contraindications and adverse-reaction reports for horses may differ from canine / feline reference data — consult the primary citations listed with each rule.
Methocarbamol (Equine Injectable) dose ranges in horses, with cited source references: IV 4.4–22 mg/kg q8-12h; IV 4.4–22 mg/kg q12-24h or to effect. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Methocarbamol (Equine Injectable) in horses: IV.
Cited course lengths for Methocarbamol (Equine Injectable) in horses include: 1-3 treatments. Duration depends on the indication — match it to the specific dose rule in the table above.
Methocarbamol (Equine Injectable) is indicated in horses for: Exertional rhabdomyolysis (tying up), muscle spasm, Muscle spasm, rhabdomyolysis (tying up).
These are general warnings for Methocarbamol (Equine Injectable) across species; consult the horse dosing table above for species-specific guidance. For horses and cattle. IV injection only — administer slowly (not more than 2ml/min per kg BW). May cause sedation, salivation, and ataxia. Do not use in animals with known renal impairment.
Why a species-specific page? Methocarbamol (Equine Injectable) pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in horses — 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.