ExoticRx · exoticrx.com/drugs/monensin
US brand names:Rumensin, Coban
Monensin is dosed at 2–10 mg/kg PO TOXIC DOSE in dogs, per Plumb's Veterinary Drug Handbook, 9th Ed; Toxicology of Domestic Animals; FDA openFDA Adverse Event Database. Verify against current literature before clinical use.
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.
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 references:All Cat (Domestic) drugsAll Cattle (Beef/Dairy) drugsAll Chicken (Poultry) drugsAll Dog (Domestic) drugsAll Goat (Caprine) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 5 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | PO | 2–10 mg/kg | TOXIC DOSE | Strong | Plumb's Veterinary Drug Handbook, 9th Ed; Toxicology of Domestic Animals; FDA openFDA Adverse Event Database |
| Cat (Domestic) | PO | 4–12 mg/kg | TOXIC DOSE | Strong | Plumb's Veterinary Drug Handbook, 9th Ed; Toxicology references; FDA openFDA Adverse Event Database |
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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.