Merck Manual

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Dosages of Chloramphenicol and Florfenicol

Dosages of Chloramphenicol and Florfenicol

Drug

Species

Dosage, Route, and Frequency

Chloramphenicol

Cats

45–60 mg/kg, PO, IV, or IM, bid

Dogs

45–60 mg/kg, PO, IV, or IM, tid-qid

Horses

50 mg/kg, PO, tid-qid, or IV, every 2–4 hr

Florfenicol

Cattle

20 mg/kg, IM, repeated in 48 hr