ExoticRx · exoticrx.com/drugs/fosfomycin-tromethamine
US brand names:Monurol
Fosfomycin Tromethamine is dosed at 40–80 mg/kg PO q12h (with food) in dogs, per Plumb's Veterinary Drug Handbook, 10th ed (2023), printed p.560, Fosfomycin > Dosages > DOGS. Verify against current literature before clinical use.
Inhibits MurA (enolpyruvyl transferase), the first step in peptidoglycan synthesis. Unique mechanism with no cross-resistance.
Single-dose for uncomplicated UTI. GI upset (diarrhea). Resistance can develop rapidly — avoid monotherapy for serious infections.
Species references:All Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 1 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | PO | 40–80 mg/kg | q12h (with food) | Weak | Plumb's Veterinary Drug Handbook, 10th ed (2023), printed p.560, Fosfomycin > Dosages > DOGSCompilation only — we have not located an independent source that prints this figure. |
Upgrade to Pro or Student to unlock the full dose ranges and frequency for every species. The drug's mechanism, warnings, indications, and cited sources are free to read.
View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.