Pocket Pet · Mustela putorius furo · typical adult weight 0.60–2.00 kg
Fenbendazole is dosed at 20 mg/kg PO q24h x 5d in ferrets, per Morrisey JK. Ectoparasites of ferrets and rabbits. Proc North Am Vet Conf; 1998:844-845. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.936 (2026-08-01). — Carpenter's Exotic Animal Formulary 6th ed, Table 11.4 (Antiparasitic Agents Used in Ferrets). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929. Fenbendazole is used in ferrets for Internal nematodes / Giardia. Routes documented in ferrets: PO. A typical adult ferret weighs 0.60–2.00 kg. ExoticRx lists 1 cited dose rule for Fenbendazole in ferrets, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Panacur
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 20 mg/kg | q24h x 5d | Internal nematodes / Giardia | Moderate |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 20 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 11.4 | 20 mg/kg PO q24h × 5 days |
| 50 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 11.4 | 50 mg/kg PO q24h × 30 days |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.
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These ranges are per kg. Enter your ferret'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 ferrets may differ from canine / feline reference data — consult the primary citations listed with each rule.
Fenbendazole dose range in ferrets, with cited source references: PO 20 mg/kg q24h x 5d. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Fenbendazole in ferrets: PO.
Fenbendazole is indicated in ferrets for: Internal nematodes / Giardia.
These are general warnings for Fenbendazole across species; consult the ferret 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 ferrets — 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.