Amphibian · Anaxyrus houstonensis · typical adult weight 0.03–0.09 kg
Fenbendazole is dosed at 100 mg/kg oral (p.o.) repeat in 2 weeks in houston toads, per Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.142. — LOCATOR CONVENTION 2026-08-07: the bare 'p.142' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.128; verified by finding the drug named there. If you are holding the book, turn to p.128. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712. Fenbendazole (Antiparasitic) has cited veterinary dosing for houston toads. Routes documented in houston toads: oral (p.o.). A typical adult houston toad weighs 0.03–0.09 kg. ExoticRx lists 1 cited dose rule for Fenbendazole in houston toads, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Panacur
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| oral (p.o.) | 100 mg/kg | repeat in 2 weeks | — | Moderate | Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.142. — LOCATOR CONVENTION 2026-08-07: the bare 'p.142' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.128; verified by finding the drug named there. If you are holding the book, turn to p.128. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712 |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
The sources disagree for this combination. The ranges below do not overlap on a comparable route. This is not an error in one of them — published veterinary references differ, and reconciling them for a particular patient is a clinical judgement.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 100 | PO | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.142 | 100 mg/kg p.o., repeat in 2 weeks |
| 30–100 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 3.3 | 30-100 mg/kg PO,90.91 Dust food items q24h x 5 days, repeat in 2-3 wk,60 |
| 30–50 | — | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 | 30-50 mg/kg PO52 Gastrointestinal nematodes |
| 50 |
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These ranges are per kg. Enter your houston toad'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 houston toads may differ from canine / feline reference data — consult the primary citations listed with each rule.
Fenbendazole dose range in houston toads, with cited source references: oral (p.o.) 100 mg/kg repeat in 2 weeks. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Fenbendazole in houston toads: oral (p.o.).
These are general warnings for Fenbendazole across species; consult the houston toad 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 houston toads — 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.
| PO |
| Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 |
| 50 mg/kg PO q24h × 3-5 days, repeat in 14-21 days52 Gastrointestinal nematodes |
| 50–100 | — | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 | 50-100 mg/kg PO36 repeat in 2-3 wk prn Most species/gastrointestinal nematodes |
| 100 | PO | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 | (F) 100 mg/kg PO, repeat in 10-14 days + (M) 10 mg/k PO q24h for 5 days52 g Concurrent gastrointestinal nematodes and protozoa |
| 0.2 | PO | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 | (F) 100 mg/kg PO on day 1, then (I) 0.2 mg/kg PO on days 2,1152 Gastrointestinal nematodes |
| 25–100 | PO | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 127.4 | 25-100 mg/kg PO q14d for up to 4 treatments37,143,166 All species/nematodes |
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.