Merck Manual

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Dosages of Quinolones

Dosages of Quinolones

Quinolonea

Species

Dosage, Route, and Frequency

Nalidixic acid

Cats, dogs

3 mg/kg, PO, qid

Enrofloxacin

Dogs

5–20 mg/kg, PO, once to twice daily

2.5 mg/kg, SC, once, then PO

Beef cattle (not veal or dairy)

7.5–12.5 mg/kg, SC, once

2.5–5 mg/kg/day, SC

Pigs

2.5–5 mg/kg/day, PO or IM

Preruminant calves

2.5–5 mg/kg/day, PO or SC

Marbofloxacin

Cats, dogs

2.75–5.5 mg/kg/day, PO

Difloxacin

Dogs

5–10 mg/kg/day, PO

Orbifloxacin

Cats, dogs

2.5–7.5 mg/kg/day, PO

Pradofloxacin

Cats

7.5 mg/kg/day, PO

a Extra-label use of fluorinated quinolones in food-producing animals is prohibited in the USA.