Monensin for Cattle
Livestock · Bos taurus · typical adult weight 250.00–900.00 kg
Monensin is used in cattle for Coccidiosis prevention, feed efficiency. Routes documented in cattle: PO. A typical adult cattle weighs 250.00–900.00 kg. ExoticRx lists 1 cited dose rule for Monensin in cattle, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Rumensin, Coban
Dose ranges
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 100–360 mg/head/day | continuous in feed | Coccidiosis prevention, feed efficiency | Strong | FDA NADA Label |
Need the exact dose for your patient?
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.
Mechanism of action
Polyether ionophore that transports cations across cell membranes, disrupting ion gradients in coccidia and gram-positive bacteria. In ruminants, improves feed efficiency by altering rumen microbial populations.
Side effects & warnings
HIGHLY TOXIC TO DOGS, HORSES, AND OTHER EQUIDS — even small amounts can be fatal. Cardiac and skeletal muscle necrosis. NO antidote. Keep all livestock feed containing monensin away from horses and dogs.
Species-specific contraindications and adverse-reaction reports for cattle may differ from canine / feline reference data — consult the primary citations listed with each rule.
Other Antiparasitic drugs with cattle dosing
Monensin dosing in other species
Why a species-specific page? Monensin 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.