Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Furosemide is dosed at 1–2 mg/kg IV q6-12h 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; Redpath A, Bowen M. Cardiac therapeutics in horses. Vet Clin North Am Equine Pract. 2019;35(1):217-241. doi:10.1016/j.cveq.2018.11.004 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.593 (2026-08-01).. Furosemide is used in horses for Pulmonary edema, EIPH, acute renal failure, EIPH, pulmonary edema. Routes documented in horses: IV. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 2 cited dose rules for Furosemide in horses, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Lasix, Salix
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 1–2 mg/kg | q6-12h | — | Pulmonary edema, EIPH, acute renal failure | 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; Redpath A, Bowen M. Cardiac therapeutics in horses. Vet Clin North Am Equine Pract. 2019;35(1):217-241. doi:10.1016/j.cveq.2018.11.004 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.593 (2026-08-01). |
| IV | 0.5–1 mg/kg | q12-24h or 4h pre-race | As needed | EIPH, pulmonary edema | Strong | DISAL - Furosemide Injection [US Product Label for Dogs, Horses]. Boehringer Ingelheim Animal Health USA Inc.; 2019. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=62c22d28-4efb-409d-8da6-113f2802347c — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.594 (2026-08-01). |
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These ranges are per kg. Enter your horse's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits sodium-potassium-chloride cotransporter (NKCC2) in the thick ascending limb of the loop of Henle, producing potent diuresis.
Monitor electrolytes (hypokalemia, hyponatremia). Ototoxicity at high IV doses. Dehydration risk. May worsen renal azotemia. Adjust dose based on clinical response.
Species-specific contraindications and adverse-reaction reports for horses may differ from canine / feline reference data — consult the primary citations listed with each rule.
Furosemide dose ranges in horses, with cited source references: IV 1–2 mg/kg q6-12h; IV 0.5–1 mg/kg q12-24h or 4h pre-race. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Furosemide in horses: IV.
Cited course lengths for Furosemide in horses include: As needed. Duration depends on the indication — match it to the specific dose rule in the table above.
Furosemide is indicated in horses for: Pulmonary edema, EIPH, acute renal failure, EIPH, pulmonary edema.
These are general warnings for Furosemide across species; consult the horse dosing table above for species-specific guidance. Monitor electrolytes (hypokalemia, hyponatremia). Ototoxicity at high IV doses. Dehydration risk. May worsen renal azotemia. Adjust dose based on clinical response.
Why a species-specific page? Furosemide 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.