Erythromycin for Cattle
Livestock · Bos taurus · typical adult weight 250.00–900.00 kg
Erythromycin is used in cattle for Respiratory infection. Routes documented in cattle: IM. A typical adult cattle weighs 250.00–900.00 kg. ExoticRx lists 1 cited dose rule for Erythromycin in cattle, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Erythro-100, Gallimycin
Dose ranges
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IM | 4.4–8.8 mg/kg | q24h | 3-5 days | Respiratory infection | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
Need the exact dose for your patient?
These ranges are per kg. Enter your cattle's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Mechanism of action
Binds 50S ribosomal subunit, inhibiting translocation of peptidyl-tRNA, blocking bacterial protein synthesis.
Side effects & warnings
CONTRAINDICATED in rabbits and hindgut fermenters. Prokinetic at sub-antimicrobial doses. GI upset common. Hepatotoxicity reported. Strong CYP inhibitor.
Species-specific contraindications and adverse-reaction reports for cattle may differ from canine / feline reference data — consult the primary citations listed with each rule.
Other Antibiotic drugs with cattle dosing
Erythromycin dosing in other species
Why a species-specific page? Erythromycin pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cattle — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.