Amphibian · Anaxyrus houstonensis · typical adult weight 0.03–0.09 kg
Vitamin A is dosed at 1000 IU/kg oral (p.o.) daily for 14 days, then q7d 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.313. — LOCATOR CONVENTION 2026-08-07: the bare 'p.313' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.299; verified by finding the drug named there. If you are holding the book, turn to p.299. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712. Vitamin A (Supplement) 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 Vitamin A in houston toads, drawn from published veterinary references. Verify against current literature before clinical use.
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| oral (p.o.) | 1000 IU/kg | daily for 14 days, then q7d | — | Moderate |
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 (iu/kg) | Route | Source | As printed |
|---|---|---|---|
| 1000 | PO | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.313 | 1000 IU/kg p.o. daily for 14 days, then q7d |
| 2000 | PO | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 127.8 | 2000 U/kg PO, SC, IM q7-14d × 2-4 treatments34,37 2000 U/30 g BW PO once, repeat in 7 days114,314 Most species/hypovitaminosis A Chameleons/eye swelling, respiratory disease, hemip |
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.
Need the exact dose for your patient?
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.
Essential fat-soluble vitamin required for vision, epithelial integrity, immune function, and reproduction. Deficiency common in captive reptiles and turtles on inadequate diets.
NARROW therapeutic index — hypervitaminosis A causes hepatotoxicity and skin sloughing. Do not overdose. Particularly important in chelonians and box turtles. Toxicity signs include skin peeling.
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.
Vitamin A dose range in houston toads, with cited source references: oral (p.o.) 1000 IU/kg daily for 14 days, then q7d. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Vitamin A in houston toads: oral (p.o.).
These are general warnings for Vitamin A across species; consult the houston toad dosing table above for species-specific guidance. NARROW therapeutic index — hypervitaminosis A causes hepatotoxicity and skin sloughing. Do not overdose. Particularly important in chelonians and box turtles. Toxicity signs include skin peeling.
Why a species-specific page? Vitamin A 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.