Pocket Pet · Oryctolagus cuniculus · typical adult weight 1.00–5.00 kg
Fenbendazole is dosed at 20 mg/kg PO q24h in rabbits, per Suter C, Muller-Doblies UU, HattJM, et al. Prevention and treatment of Encephalitozoon cuniculi infection in rabbits with fenbendazole. Vet Rec. 2001;148:478-480. doi:10.1136/vr.148.15.478; Mencke N, Bach T. Managing gastrointestinal helminths in small mammals. Comp Cont Educ Pract. 2007;29:13-16. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.850 (2026-08-01).. Fenbendazole is used in rabbits for E. cuniculi, pinworms, Passalurus ambiguus (pinworms). Routes documented in rabbits: PO. A typical adult rabbit weighs 1.00–5.00 kg. ExoticRx lists 2 cited dose rules for Fenbendazole in rabbits, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Panacur
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 20 mg/kg | q24h | 28 days for E. cuniculi; 5 days for pinworms | E. cuniculi, pinworms | Strong | Suter C, Muller-Doblies UU, HattJM, et al. Prevention and treatment of Encephalitozoon cuniculi infection in rabbits with fenbendazole. Vet Rec. 2001;148:478-480. doi:10.1136/vr.148.15.478; Mencke N, Bach T. Managing gastrointestinal helminths in small mammals. Comp Cont Educ Pract. 2007;29:13-16. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.850 (2026-08-01). |
| PO | 20 mg/kg | q24h | 5 days; repeat in 2 weeks | Passalurus ambiguus (pinworms) | Strong | Suter C, Muller-Doblies UU, HattJM, et al. Prevention and treatment of Encephalitozoon cuniculi infection in rabbits with fenbendazole. Vet Rec. 2001;148:478-480. doi:10.1136/vr.148.15.478 — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.850 (2026-08-01). |
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These ranges are per kg. Enter your rabbit'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 rabbits may differ from canine / feline reference data — consult the primary citations listed with each rule.
Fenbendazole dose ranges in rabbits, with cited source references: PO 20 mg/kg q24h; PO 20 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Fenbendazole in rabbits: PO.
Cited course lengths for Fenbendazole in rabbits include: 28 days for E. cuniculi; 5 days for pinworms; 5 days; repeat in 2 weeks. Duration depends on the indication — match it to the specific dose rule in the table above.
Fenbendazole is indicated in rabbits for: E. cuniculi, pinworms, Passalurus ambiguus (pinworms).
These are general warnings for Fenbendazole across species; consult the rabbit 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 rabbits — 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.