Livestock · Ovis aries · typical adult weight 30.00–120.00 kg
Fenbendazole is dosed at 5 mg/kg PO single dose in sheep, per Verified against Papich/Saunders Handbook of Veterinary Drugs, 4th Ed, p.344 (2026-08-01).. Fenbendazole is used in sheep for GI nematodes. Routes documented in sheep: PO. A typical adult sheep weighs 30.00–120.00 kg. ExoticRx lists 1 cited dose rule for Fenbendazole in sheep, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Panacur
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 5 mg/kg | single dose | GI nematodes | Strong | Verified against Papich/Saunders Handbook of Veterinary Drugs, 4th Ed, p.344 (2026-08-01). |
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These ranges are per kg. Enter your sheep's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Binds to beta-tubulin, inhibiting microtubule polymerization in parasites. Disrupts energy metabolism and cell division.
Very wide safety margin. Rarely causes vomiting or diarrhea. Safe in pregnant animals at standard doses. Must be given for multiple consecutive days for efficacy.
Species-specific contraindications and adverse-reaction reports for sheep may differ from canine / feline reference data — consult the primary citations listed with each rule.
Fenbendazole dose range in sheep, with cited source references: PO 5 mg/kg single dose. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Fenbendazole in sheep: PO.
Fenbendazole is indicated in sheep for: GI nematodes.
These are general warnings for Fenbendazole across species; consult the sheep dosing table above for species-specific guidance. Very wide safety margin. Rarely causes vomiting or diarrhea. Safe in pregnant animals at standard doses. Must be given for multiple consecutive days for efficacy.
Why a species-specific page? Fenbendazole pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in sheep — 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.