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Tetracycline
Species
Dosage, Route, and Frequency
Cats, dogs
7 mg/kg, IM or IV, bid
20 mg/kg, PO, tid
Oxytetracycline
Cattle, sheep, pigs
5–10 mg/kg/day, IM or IV
Calves, foals, lambs, piglets
10–20 mg/kg, PO, bid-tid
Horses
5 mg/kg, IV, once to twice daily
Doxycycline
Dogs
5–10 mg/kg/day, PO
5 mg/kg/day, IV
Before heartworm adulticide therapy
10 mg/kg, PO, bid, for 30 days