Ormetoprim + Sulfadimethoxine Dosage Calculator

Ormetoprim + Sulfadimethoxine Dosage for Dogs, Cats, Horses By Weight
Trade Names: Primor
Functional classification: Antibacterial

Ormetoprim + Sulfadimethoxine Dosing for Dogs, Cats, Horses By Weight

Important Information

All doses are based on the combined milligram amount of both ormetoprim and sulfadimethoxine.

For cats: Although doses are not reported by the manufacturer, doses similar to those for dogs have been administered.

Reference Source

Saunders Handbook of VETERINARY DRUGS, Page 610-612

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Standard Dosage Guidelines

Small Animal Dosage

Species Route Dosage Frequency Notes
Dogs PO 55 mg/kg on first day, followed by 27.5 mg/kg q24h Doses can be divided into twice-daily treatments
Cats PO 55 mg/kg on first day, followed by 27.5 mg/kg q24h Similar to dog dosing (not manufacturer reported)

Large Animal Dosage

Species Route Dosage Frequency Notes
Horses PO 55 mg/kg on first day, followed by 27.5 mg/kg q24h

Note: All doses are based on the combined milligram amount of both ormetoprim and sulfadimethoxine.