Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Fenbendazole is used in dog for Roundworms, hookworms, whipworms, Giardia, Whipworms (Trichuris vulpis), Hookworms (Ancylostoma caninum), Giardia. Routes documented in dog: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 4 cited dose rules for Fenbendazole in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Panacur
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 50 mg/kg | q24h | 3-5 consecutive days; repeat in 2-3 weeks for whipworms | Roundworms, hookworms, whipworms, Giardia | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 50 mg/kg | q24h | 3 consecutive days; repeat in 3 weeks and 3 months | Whipworms (Trichuris vulpis) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 50 mg/kg | q24h | 3 consecutive days | Hookworms (Ancylostoma caninum) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 50 mg/kg | q24h | 5 consecutive days | Giardia | Strong | 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.
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 dog 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 dog — 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.