Livestock · Gallus gallus domesticus · typical adult weight 0.50–5.00 kg
Sulfamethazine is dosed at 100–200 mg/kg PO Continuous in water in chickens, per U.S. Food and Drug Administration. Animal drugs. Available at: https://animaldrugsatfda.fda.gov/adafda/views/#/home/previewsearch. Accessed August 14, 2020. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.628 (2026-08-01).. Sulfamethazine is used in chickens for Coccidiosis, fowl cholera. Routes documented in chickens: PO. A typical adult chicken weighs 0.50–5.00 kg. ExoticRx lists 1 cited dose rule for Sulfamethazine in chickens, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Sulmet
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 100–200 mg/kg | Continuous in water | 2 days high then 4 days maintenance | Coccidiosis, fowl cholera | Strong | U.S. Food and Drug Administration. Animal drugs. Available at: https://animaldrugsatfda.fda.gov/adafda/views/#/home/previewsearch. Accessed August 14, 2020. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.628 (2026-08-01). |
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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.
Inhibits dihydropteroate synthase in bacterial folate synthesis. Used primarily in food animals and poultry for coccidiosis.
Withdrawal times required in food animals. Crystalluria risk. Adequate water intake essential. May cause blood dyscrasias with prolonged use.
Species-specific contraindications and adverse-reaction reports for chickens may differ from canine / feline reference data — consult the primary citations listed with each rule.
Sulfamethazine dose range in chickens, with cited source references: PO 100–200 mg/kg Continuous in water. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Sulfamethazine in chickens: PO.
Cited course lengths for Sulfamethazine in chickens include: 2 days high then 4 days maintenance. Duration depends on the indication — match it to the specific dose rule in the table above.
Sulfamethazine is indicated in chickens for: Coccidiosis, fowl cholera.
These are general warnings for Sulfamethazine across species; consult the chicken dosing table above for species-specific guidance. Withdrawal times required in food animals. Crystalluria risk. Adequate water intake essential. May cause blood dyscrasias with prolonged use.
Why a species-specific page? Sulfamethazine 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.