Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Sulfamethazine is dosed at 50–60 mg/kg PO q24h loading then 25-30 q24h in dogs, per Plumb's Veterinary Drug Handbook, 9th Ed. Sulfamethazine is used in dogs for Coccidiosis. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Sulfamethazine in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Sulmet
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 50–60 mg/kg | q24h loading then 25-30 q24h | 10-14 days | Coccidiosis | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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These ranges are per kg. Enter your dog'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 dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Sulfamethazine dose range in dogs, with cited source references: PO 50–60 mg/kg q24h loading then 25-30 q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Sulfamethazine in dogs: PO.
Cited course lengths for Sulfamethazine in dogs include: 10-14 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Sulfamethazine is indicated in dogs for: Coccidiosis.
These are general warnings for Sulfamethazine across species; consult the dog 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 dogs — 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.