Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Furosemide is used in dog for CHF when IV not available, Oliguric renal failure (to promote urine production), Acute CHF, pulmonary edema (emergency), CHF, pulmonary edema, ascites. Routes documented in dog: IM, IV, PO, SC. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 7 cited dose rules for Furosemide in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Lasix, Salix
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IM | 2–4 mg/kg | q6-8h | Until IV access or oral feasible | CHF when IV not available | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| IV | 2–6 mg/kg | q6-8h | 48-72 hours trial | Oliguric renal failure (to promote urine production) | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
| IV | 2–4 mg/kg | q1-4h | Emergency until stabilized | Acute CHF, pulmonary edema (emergency) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 1–4 mg/kg | q8-12h | Chronic; lowest effective dose | CHF, pulmonary edema, ascites | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 1–2 mg/kg | q12h | Chronic with monitoring | Ascites (hepatic or neoplastic) | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 2–4 mg/kg | q8-12h | Chronic; use lowest effective dose | Cardiogenic pulmonary edema (chronic management) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| SC | 1–4 mg/kg | q8-12h | As needed | CHF maintenance when oral difficult | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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.
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 dog may differ from canine / feline reference data — consult the primary citations listed with each rule.
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 dog — 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.