Livestock · Bos taurus · typical adult weight 250.00–900.00 kg
Oxfendazole is dosed at 4.5 mg/kg PO Once in cattle, per SYNANTHIC BOVINE DEWORMER- Oxfendazole Suspension [Product Label]. Boehringer Ingelheim Animal Health USA Inc.; 2019. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=152cde64-ff22-4a3e-bb78-65e159dbe6b6 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.993 (2026-08-01). — Plumb's 10th ed (held) printed p.966, Oxfendazole monograph; page located 2026-08-05 from the book's own running heads, and carries this exact dose under the matching species heading. — 21 CFR § 520.1630 (Oxfendazole suspension), conditions of use for Cattle: 4.5-4.5 mg/kg. Retrieved from the eCFR API, snapshot 2026-01-01. https://www.ecfr.gov/current/title-21/section-520.1630 — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Oxfendazole is used in cattle for GI nematodes, lungworms. Routes documented in cattle: PO. A typical adult cattle weighs 250.00–900.00 kg. ExoticRx lists 1 cited dose rule for Oxfendazole in cattle, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Synanthic, Benzelmin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 4.5 mg/kg | Once | Single dose | GI nematodes, lungworms | Strong | SYNANTHIC BOVINE DEWORMER- Oxfendazole Suspension [Product Label]. Boehringer Ingelheim Animal Health USA Inc.; 2019. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=152cde64-ff22-4a3e-bb78-65e159dbe6b6 — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.993 (2026-08-01). — Plumb's 10th ed (held) printed p.966, Oxfendazole monograph; page located 2026-08-05 from the book's own running heads, and carries this exact dose under the matching species heading. — 21 CFR § 520.1630 (Oxfendazole suspension), conditions of use for Cattle: 4.5-4.5 mg/kg. Retrieved from the eCFR API, snapshot 2026-01-01. https://www.ecfr.gov/current/title-21/section-520.1630 — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207 |
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 |
|---|---|---|---|
| 10 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.617 | • 10 mg/kg PO. • 4.5 mg/kg PO. |
| 4.5 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.617 | • 10 mg/kg PO. • 4.5 mg/kg PO. |
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 cattle's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Active metabolite of febantel; inhibits microtubule polymerization by binding parasite beta-tubulin. Broad-spectrum nematocidal.
Wide safety margin. Teratogenic potential. Used in cattle, horses, and exotic species. Efficacy against some resistant nematode populations declining.
Species-specific contraindications and adverse-reaction reports for cattle may differ from canine / feline reference data — consult the primary citations listed with each rule.
Oxfendazole dose range in cattle, with cited source references: PO 4.5 mg/kg Once. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Oxfendazole in cattle: PO.
Cited course lengths for Oxfendazole in cattle include: Single dose. Duration depends on the indication — match it to the specific dose rule in the table above.
Oxfendazole is indicated in cattle for: GI nematodes, lungworms.
These are general warnings for Oxfendazole across species; consult the cattle dosing table above for species-specific guidance. Wide safety margin. Teratogenic potential. Used in cattle, horses, and exotic species. Efficacy against some resistant nematode populations declining.
Why a species-specific page? Oxfendazole pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cattle — 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.