Livestock · Sus scrofa domesticus · typical adult weight 1.00–300.00 kg
Toltrazuril is dosed at 20 mg/kg PO single dose at 3-5 days of age in swine, per BAYCOX - Toltrazuril Oral Suspension [Canadian Product Label for Calves, Piglets, Lambs]. Elanco Canada Limited; 2020. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1284 (2026-08-01).. Toltrazuril is used in swine for Coccidiosis in piglets, Coccidiosis in piglets (Isospora suis). Routes documented in swine: PO. A typical adult swine weighs 1.00–300.00 kg. ExoticRx lists 2 cited dose rules for Toltrazuril in swine, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Baycox
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 20 mg/kg | single dose at 3-5 days of age | — | Coccidiosis in piglets | Moderate | BAYCOX - Toltrazuril Oral Suspension [Canadian Product Label for Calves, Piglets, Lambs]. Elanco Canada Limited; 2020. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1284 (2026-08-01). |
| PO | 20 mg/kg | Once | Single dose at 3-5 days of age | Coccidiosis in piglets (Isospora suis) | Moderate | BAYCOX - Toltrazuril Oral Suspension [Canadian Product Label for Calves, Piglets, Lambs]. Elanco Canada Limited; 2020. — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.1284 (2026-08-01). |
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These ranges are per kg. Enter your swine's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Disrupts mitochondrial function and nuclear division in all intracellular stages of coccidia. Coccidiocidal rather than coccidiostatic.
Generally well-tolerated. Primarily used for coccidiosis. Single-dose or short-course treatment. Bitter taste. Extra-label use in small animals.
Species-specific contraindications and adverse-reaction reports for swine may differ from canine / feline reference data — consult the primary citations listed with each rule.
Toltrazuril dose ranges in swine, with cited source references: PO 20 mg/kg single dose at 3-5 days of age; PO 20 mg/kg Once. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Toltrazuril in swine: PO.
Cited course lengths for Toltrazuril in swine include: Single dose at 3-5 days of age. Duration depends on the indication — match it to the specific dose rule in the table above.
Toltrazuril is indicated in swine for: Coccidiosis in piglets, Coccidiosis in piglets (Isospora suis).
These are general warnings for Toltrazuril across species; consult the swine dosing table above for species-specific guidance. Generally well-tolerated. Primarily used for coccidiosis. Single-dose or short-course treatment. Bitter taste. Extra-label use in small animals.
Why a species-specific page? Toltrazuril pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in swine — 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.