Livestock · Bos taurus · typical adult weight 250.00–900.00 kg
Amprolium is dosed at 5–10 mg/kg PO q24h in water or feed in cattle, per Amprol 128- amprolium powder [US product label]. Peachtree City, GA: Huvepharma, Inc.; 2011. / 9. Ampromed For Calves - amprolium solution [US product label]. LettSueur, MN: Bimeda, Inc.; 2020. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=ccf7a5cc-b50a-4dc4-8de8-13c9e36608cb — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.112 (2026-08-01). — Plumb's 10th ed (held) printed p.84, Amprolium monograph spanning p.84-85; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — SOURCE EDITION: Plumb's Veterinary Drug Handbook — ISBN 9781394172207, https://openlibrary.org/isbn/9781394172207. Amprolium is used in cattle for Coccidiosis TREATMENT in calves (Eimeria bovis, E. zuernii) - 10 mg/kg PO once daily for 5 days. Routes documented in cattle: PO. A typical adult cattle weighs 250.00–900.00 kg. ExoticRx lists 1 cited dose rule for Amprolium in cattle, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Corid, Amprol
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 5–10 mg/kg | q24h in water or feed | 5-21 days | Coccidiosis TREATMENT in calves (Eimeria bovis, E. zuernii) - 10 mg/kg PO once daily for 5 days | Strong | Amprol 128- amprolium powder [US product label]. Peachtree City, GA: Huvepharma, Inc.; 2011. / 9. Ampromed For Calves - amprolium solution [US product label]. LettSueur, MN: Bimeda, Inc.; 2020. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=ccf7a5cc-b50a-4dc4-8de8-13c9e36608cb — Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.112 (2026-08-01). — Plumb's 10th ed (held) printed p.84, Amprolium monograph spanning p.84-85; page located 2026-08-05 from the book's own running heads, verified to name the drug in its body text. — 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 |
|---|---|---|---|
| 5 | — | Papich Saunders Handbook of Veterinary Drugs, 4th edp.76 | • Prevention of coccidiosis: 5 mg/kg q24h for 21 days. |
| 10 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.76 | • Treatment of coccidiosis: 10 mg/kg q24h for 5 days 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.
Thiamine analog that competitively inhibits thiamine uptake by coccidia, interfering with carbohydrate metabolism of the parasite.
Prolonged use may cause thiamine deficiency (polioencephalomalacia). Primarily coccidiostatic, not coccidiocidal. Ensure adequate thiamine intake.
Species-specific contraindications and adverse-reaction reports for cattle may differ from canine / feline reference data — consult the primary citations listed with each rule.
Amprolium dose range in cattle, with cited source references: PO 5–10 mg/kg q24h in water or feed. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Amprolium in cattle: PO.
Cited course lengths for Amprolium in cattle include: 5-21 days. Duration depends on the indication — match it to the specific dose rule in the table above.
Amprolium is indicated in cattle for: Coccidiosis TREATMENT in calves (Eimeria bovis, E. zuernii) - 10 mg/kg PO once daily for 5 days.
These are general warnings for Amprolium across species; consult the cattle dosing table above for species-specific guidance. Prolonged use may cause thiamine deficiency (polioencephalomalacia). Primarily coccidiostatic, not coccidiocidal. Ensure adequate thiamine intake.
Why a species-specific page? Amprolium 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.