Fenbendazole

Fenbendazole is dosed at 50–100 mg/kg PO once in ball pythons, per Plumb's Fenbendazole REPTILES, corpus p.534; Carpenter's 6th ed. Table 4.4, p.225, ball-python-specific row; Mader's Table 127.4, corpus p.1406 ('All species/nematodes') — Carpenter's Exotic Animal Formulary 6th ed, Table 4.4 (Antiparasitic Agents Used in Reptiles). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — LOCATOR CONVENTION 2026-08-07: the bare 'p.534' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.507; verified by finding the drug named there. If you are holding the book, turn to p.507. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Mader's Reptile and Amphibian Medicine and Surgery (Divers & Stahl) — ISBN 9780323482530, https://openlibrary.org/isbn/9780323482530 — PROVENANCE (wave 3, two readers): the served 50-100 mg/kg ONCE regimen is printed only in BSAVA Small Animal Formulary 10th ed Part B, printed p.128 — "Reptiles: Nematodes: 50-100 mg/kg p.o., per cloaca once". Both cited formulary tables print a DIFFERENT regimen — Carpenter's Table 4.4 and Mader's Table 127.4 both give 25-100 mg/kg PO q14d for up to 4 treatments, and Plumb's gives 50-100 mg/kg PO repeated in 2 weeks. Class caution, BSAVA p.128 — profound leucopenia in Testudo hermanni after two courses of 50 mg/kg daily for 5 days.. Verify against current literature before clinical use.