Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Losartan is dosed at 0.5–1 mg/kg PO q24h in dogs, per Plumb's Veterinary Drug Handbook, 9th Ed — Losartan, Dosages: DOGS, IRIS consensus (corpus p.809); corroborated by Papich Saunders Handbook of Veterinary Drugs, Losartan, Small Animal Dosage (corpus p.489). Losartan is used in dogs for Hypertension, proteinuria. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Losartan in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Cozaar
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.5–1 mg/kg | q24h | Long-term | Hypertension, proteinuria | Weak | Plumb's Veterinary Drug Handbook, 9th Ed — Losartan, Dosages: DOGS, IRIS consensus (corpus p.809); corroborated by Papich Saunders Handbook of Veterinary Drugs, Losartan, Small Animal Dosage (corpus p.489) |
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.
Selectively blocks angiotensin II type 1 (AT1) receptors. Reduces aldosterone secretion, vasoconstriction, and cardiac remodeling without affecting bradykinin.
Limited veterinary data. Alternative to ACE inhibitors for patients with ACEi-related side effects. Hyperkalemia risk. Monitor renal function.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Losartan dose range in dogs, with cited source references: PO 0.5–1 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Losartan in dogs: PO.
Cited course lengths for Losartan in dogs include: Long-term. Duration depends on the indication — match it to the specific dose rule in the table above.
Losartan is indicated in dogs for: Hypertension, proteinuria.
These are general warnings for Losartan across species; consult the dog dosing table above for species-specific guidance. Limited veterinary data. Alternative to ACE inhibitors for patients with ACEi-related side effects. Hyperkalemia risk. Monitor renal function.
Why a species-specific page? Losartan pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dogs — 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.