Gamithromycin Dosage Calculator

Gamithromycin Dosage for Cattle and Horses By Weight
Trade Names: Zactran
Functional classification: Antibacterial

Gamithromycin Dosing for Cattle and Horses By Weight

Important Safety Information

For cattle: 6 mg/kg SQ (neck) as a single injection (2 mL per 110 pounds).

For horses: 6 mg/kg IM, administered every 7 days if needed.

Not recommended for pigs.

Reference Source

Saunders Handbook of VETERINARY DRUGS, Page 378-379

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Standard Dosage Guidelines

Small Animal Dosage

Species Route Dosage Frequency
No small animal doses have been established

Large Animal Dosage

Species Route Dosage Frequency
Cattle SQ 6 mg/kg Single injection
Horses IM 6 mg/kg Every 7 days if needed
Pigs Not recommended