Pocket Pet · Rattus norvegicus var. domestica · typical adult weight 0.25–0.70 kg
Ponazuril is dosed at 30 mg/kg PO q48h in pet rats, per Gardhouse S, Eshar D. Diagnosis and successful treatment of Eimeria infection in a group of zoo-kept black-tailed prairie dogs (Cynomys ludovicianus). J Zoo Wildl Med. 2015;46:367-369. | Marroquin SC, Eshar D, Browning GR, et al. Diagnosis and successful treatment of Eimeria infection in a pair of pet domestic rats (Rattus norvegicus) withttponazuril. J Exot Pet Med. 2020;33:31-33. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.779 (2026-08-01, PENDING REVIEW). Ponazuril is used in pet rats for Coccidiosis (Eimeria). Routes documented in pet rats: PO. A typical adult pet rat weighs 0.25–0.70 kg. ExoticRx lists 1 cited dose rule for Ponazuril in pet rats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Marquis
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 30 mg/kg | q48h | Coccidiosis (Eimeria) | Weak | Gardhouse S, Eshar D. Diagnosis and successful treatment of Eimeria infection in a group of zoo-kept black-tailed prairie dogs (Cynomys ludovicianus). J Zoo Wildl Med. 2015;46:367-369. | Marroquin SC, Eshar D, Browning GR, et al. Diagnosis and successful treatment of Eimeria infection in a pair of pet domestic rats (Rattus norvegicus) withttponazuril. J Exot Pet Med. 2020;33:31-33. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.779 (2026-08-01, PENDING REVIEW) |
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These ranges are per kg. Enter your pet rat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits coccidian parasite mitochondrial electron transport, disrupting energy production. Active metabolite of toltrazuril.
Marketed for horses (EPM); used off-label in other species. Palatability may be poor. Compounded suspensions should be verified for stability.
Species-specific contraindications and adverse-reaction reports for pet rats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Ponazuril dose range in pet rats, with cited source references: PO 30 mg/kg q48h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Ponazuril in pet rats: PO.
Ponazuril is indicated in pet rats for: Coccidiosis (Eimeria).
These are general warnings for Ponazuril across species; consult the pet rat dosing table above for species-specific guidance. Marketed for horses (EPM); used off-label in other species. Palatability may be poor. Compounded suspensions should be verified for stability.
Why a species-specific page? Ponazuril pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in pet rats — 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.