Livestock · Gallus gallus domesticus · typical adult weight 0.50–5.00 kg
Contraindicated in Tortoise / Turtle
Ivermectin is dosed at 0.2–0.4 mg/kg PO Once; repeat in 10-14 days in chickens, per FARAD Withdrawal Guidelines — dose corroborated 2026-08-05 in Plumb's Veterinary Drug Handbook 10th ed, Ivermectin monograph, printed p.712. NOTE: FARAD publishes meat/milk WITHDRAWAL intervals for extralabel use; it is not the source of the dose itself, so the dose is cited to Plumb's and FARAD retained for the withdrawal guidance. Ivermectin is used in chickens for Nematodes, external parasites. Routes documented in chickens: PO. A typical adult chicken weighs 0.50–5.00 kg. ExoticRx lists 1 cited dose rule for Ivermectin in chickens, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Ivomec, Heartgard
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.2–0.4 mg/kg | Once; repeat in 10-14 days | 1-2 doses | Nematodes, external parasites | Weak | FARAD Withdrawal Guidelines — dose corroborated 2026-08-05 in Plumb's Veterinary Drug Handbook 10th ed, Ivermectin monograph, printed p.712. NOTE: FARAD publishes meat/milk WITHDRAWAL intervals for extralabel use; it is not the source of the dose itself, so the dose is cited to Plumb's and FARAD retained for the withdrawal guidance.Compilation only — we have not located an independent source that prints this figure. |
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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.
Potentiates glutamate-gated chloride channels in invertebrate nerve and muscle cells, causing paralysis and death of parasites.
TOXIC to MDR1-mutant dogs (Collies, Shelties, Aussies) at elevated doses. DO NOT use in chelonians (turtles/tortoises). Narrow safety margin in some species. Test MDR1 status before use in herding breeds.
Species-specific contraindications and adverse-reaction reports for chickens may differ from canine / feline reference data — consult the primary citations listed with each rule.
Ivermectin dose range in chickens, with cited source references: PO 0.2–0.4 mg/kg Once; repeat in 10-14 days. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Ivermectin in chickens: PO.
Cited course lengths for Ivermectin in chickens include: 1-2 doses. Duration depends on the indication — match it to the specific dose rule in the table above.
Ivermectin is indicated in chickens for: Nematodes, external parasites.
These are general warnings for Ivermectin across species; consult the chicken dosing table above for species-specific guidance. TOXIC to MDR1-mutant dogs (Collies, Shelties, Aussies) at elevated doses. DO NOT use in chelonians (turtles/tortoises). Narrow safety margin in some species. Test MDR1 status before use in herding breeds.
Why a species-specific page? Ivermectin 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.