Fenbendazole for Cattle
Fenbendazole is used in cattle for Aelurostrongylus (lungworm), Ascaridia, Ascaridia dissimilis, ascarids. Routes documented in cattle: PO. ExoticRx tracks Fenbendazole dosing for cattle from primary veterinary literature; sign in to view the full rule set. Verify against current literature before clinical use.
Trade names: Panacur
Dose rules — sign in to view
Cited dose rules for Fenbendazole in cattle are available with a free ExoticRx account. Each row carries the route, dose range, frequency, indication, evidence level, and primary-source citation.
Mechanism of action
Binds to beta-tubulin, inhibiting microtubule polymerization in parasites. Disrupts energy metabolism and cell division.
Side effects & warnings
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 cattle may differ from canine / feline reference data — consult the primary citations listed with each rule.
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 cattle — the rules above are the citations specific to this species, not generic recommendations.
Sourced from primary literature; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.