Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Atropine is dosed at 0.01–0.02 mg/kg IV single dose in horses, per Mogg T. Equine cardiac disease: clinical pharmacology and therapeutics. Vet Clin North Am Equine Pract. 1999;15:523-534. doi:10.1016/s0749-0739(17)30130-x — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.142 (2026-08-01).. Atropine is used in horses for Bradycardia, organophosphate toxicosis. Routes documented in horses: IV. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 1 cited dose rule for Atropine in horses, drawn from published veterinary references. Verify against current literature before clinical use.
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| IV | 0.01–0.02 mg/kg | single dose | Bradycardia, organophosphate toxicosis | Strong | Mogg T. Equine cardiac disease: clinical pharmacology and therapeutics. Vet Clin North Am Equine Pract. 1999;15:523-534. doi:10.1016/s0749-0739(17)30130-x — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.142 (2026-08-01). |
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Competitive muscarinic receptor antagonist. Increases heart rate (vagolytic), reduces secretions, and mydriasis.
Tachycardia, ileus, urinary retention. Increases myocardial oxygen demand. Rabbits have high atropinase activity — may need higher/more frequent doses or use glycopyrrolate instead.
Species-specific contraindications and adverse-reaction reports for horses may differ from canine / feline reference data — consult the primary citations listed with each rule.
Atropine dose range in horses, with cited source references: IV 0.01–0.02 mg/kg single dose. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Atropine in horses: IV.
Atropine is indicated in horses for: Bradycardia, organophosphate toxicosis.
These are general warnings for Atropine across species; consult the horse dosing table above for species-specific guidance. Tachycardia, ileus, urinary retention. Increases myocardial oxygen demand. Rabbits have high atropinase activity — may need higher/more frequent doses or use glycopyrrolate instead.
Why a species-specific page? Atropine 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.