Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Oxytetracycline is dosed at 6.6 mg/kg IV q12h in horses, per Madigan J, Pusterla N. Ehrlichial Diseases. The Veterinary Clinics of North America: Equine Practice. 2000;16:3. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1001 (2026-08-01).. Oxytetracycline is used in horses for Potomac horse fever, Lyme disease. Routes documented in horses: IV. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 1 cited dose rule for Oxytetracycline in horses, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Terramycin, Liquamycin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 6.6 mg/kg | q12h | 5-7 days | Potomac horse fever, Lyme disease | Strong | Madigan J, Pusterla N. Ehrlichial Diseases. The Veterinary Clinics of North America: Equine Practice. 2000;16:3. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1001 (2026-08-01). |
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Inhibits protein synthesis by binding 30S ribosomal subunit. Broad-spectrum bacteriostatic agent.
Tissue irritation with IM injection. Avoid in young animals (tooth/bone discoloration). Chelation with divalent cations reduces absorption. Photosensitivity.
Species-specific contraindications and adverse-reaction reports for horses may differ from canine / feline reference data — consult the primary citations listed with each rule.
Oxytetracycline dose range in horses, with cited source references: IV 6.6 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Oxytetracycline in horses: IV.
Cited course lengths for Oxytetracycline in horses include: 5-7 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Oxytetracycline is indicated in horses for: Potomac horse fever, Lyme disease.
These are general warnings for Oxytetracycline across species; consult the horse dosing table above for species-specific guidance. Tissue irritation with IM injection. Avoid in young animals (tooth/bone discoloration). Chelation with divalent cations reduces absorption. Photosensitivity.
Why a species-specific page? Oxytetracycline 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.