Rifampin Dosage Calculator

Rifampin Dosage for Dogs, Cats, Horses, Cattle By Weight
Trade Names: Rifadin, Rimactane, Rifampicin
Functional classification: Antibacterial

Rifampin Dosing for Dogs, Cats, Horses, Cattle By Weight

Important Safety Information

For foals with R. equi, rifampin should be combined with erythromycin (25 mg/kg q8h PO).

Use with caution and monitor for potential side effects. Always follow veterinary guidance.

Reference Source

Saunders Handbook of VETERINARY DRUGS, Page 736-738

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Standard Dosage Guidelines

Small Animal Dosage

Species Route Dosage Frequency
Dogs PO 5 mg/kg q12h
PO 10 mg/kg q24h
Cats PO 5 mg/kg q12h
PO 10 mg/kg q24h

Large Animal Dosage

Species Route Dosage Frequency
Horses PO 10 mg/kg q24h
PO (Foals) 5 mg/kg q12h (for R. equi with erythromycin)
Cattle PO 20 mg/kg q24h