Azithromycin Dosage Calculator

Azithromycin Dosage for Dogs, Cats, Horses, Cattle, Calves By Weight
Trade Names: Zithromax
Functional classification: Macrolide Antibacterial

Azithromycin Dosing for Dogs, Cats, Horses, Cattle, Calves By Weight

Important Safety Information

Use with caution in animals with liver impairment. Monitor for gastrointestinal side effects.

For foals: the 1-g packet can be mixed with water to create suspension for oral administration.

Reference Source

Saunders Handbook of VETERINARY DRUGS, Page 93-96

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Standard Dosage Guidelines

Small Animal Dosage

Species Route Dosage Frequency
Dogs PO 5-10 mg/kg Once daily for 5-7 days, then every other day
Cats PO 5-10 mg/kg Once daily for 7 days, then q48h
PO 10-15 mg/kg Daily for 3 days, then twice weekly

Large Animal Dosage

Species Route Dosage Frequency
Horses PO 10 mg/kg q24h initially for 5 days, then q48h after response
Cattle IM 10 mg/kg Once daily
Calves PO 33 mg/kg Once daily for 7 days