Merck Manual

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Dosages of Macrolides

Dosages of Macrolides

Macrolide

Species

Dosage, Route, and Frequency

Erythromycin

Cattle

8–15 mg/kg, IM, once to twice daily

Cats

15 mg/kg, PO, tid

Foals

25 mg/kg, IM, tid

Tylosin

Cattle

10–20 mg/kg, IM, once to twice daily

Pigs

10 mg/kg, IM, once to twice daily

7–10 mg/kg, PO, tid

Cats

10 mg/kg, IM, bid

Tilmicosin

Cattle

10 mg/kg, SC, once

Tulathromycin

Cattle

2.5 mg/kg, SC, once

Swine

2.5 mg/kg, IM, once

Gamithromycin

Cattle

6 mg/kg, SC, once

Azithromycin

Dogs

5–10 mg/kg, PO, once to twice daily