Livestock · Gallus gallus domesticus · typical adult weight 0.50–5.00 kg
Erythromycin is dosed at 55–110 mg/kg PO q12h in chickens, per Greenacre, C.B., Luna, G.L., and Morishita, T.M. (2018). Backyard poultry and waterfowl. In: Exotic Animal Formulary, 5e (ed. J.W. Carpenter), 377-432. St. Louis, Missouri: Elsevier. — Mined from Greenacre & Morishita, Backyard Poultry Medicine and Surgery, 2nd Ed, p.588 (2026-08-01, PENDING REVIEW). Erythromycin is used in chickens for Mycoplasmosis; infectious coryza. Routes documented in chickens: PO. A typical adult chicken weighs 0.50–5.00 kg. ExoticRx lists 1 cited dose rule for Erythromycin in chickens, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Erythro-100, Gallimycin
Contraindicated in Chinchilla, Guinea Pig, Rabbit, Hamster, Degu
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 55–110 mg/kg | q12h | Mycoplasmosis; infectious coryza | Moderate | Greenacre, C.B., Luna, G.L., and Morishita, T.M. (2018). Backyard poultry and waterfowl. In: Exotic Animal Formulary, 5e (ed. J.W. Carpenter), 377-432. St. Louis, Missouri: Elsevier. — Mined from Greenacre & Morishita, Backyard Poultry Medicine and Surgery, 2nd Ed, p.588 (2026-08-01, PENDING REVIEW) |
Need the exact dose for your patient?
These ranges are per kg. Enter your chicken's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Binds 50S ribosomal subunit, inhibiting translocation of peptidyl-tRNA, blocking bacterial protein synthesis.
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 chickens may differ from canine / feline reference data — consult the primary citations listed with each rule.
Erythromycin dose range in chickens, with cited source references: PO 55–110 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Erythromycin in chickens: PO.
Erythromycin is indicated in chickens for: Mycoplasmosis; infectious coryza.
These are general warnings for Erythromycin across species; consult the chicken dosing table above for species-specific guidance. CONTRAINDICATED in rabbits and hindgut fermenters. Prokinetic at sub-antimicrobial doses. GI upset common. Hepatotoxicity reported. Strong CYP inhibitor.
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 chickens — 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.