Pocket Pet · Cavia porcellus · typical adult weight 0.70–1.20 kg
Carbimazole is dosed at 1–2 mg/kg PO q24h in guinea pigs, per Ewringmann A, Gloeckner B. Leitsymptome bei Meerschweinchen, Chinchilla und Degu, Enke, Stuttgart, Germany; 2012. / Mayer J, Wagner R, Taeymans O. Advanced diagnostic approaches and current management of thyroid pathologies in guinea pigs. Vet Clin North Am Exot Anim Pract. 2010;13:509-523. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.799 (2026-08-01, PENDING REVIEW) doi:10.1055/b-004-129947. Carbimazole is used in guinea pigs for Hyperthyroidism. Routes documented in guinea pigs: PO. A typical adult guinea pig weighs 0.70–1.20 kg. ExoticRx lists 1 cited dose rule for Carbimazole in guinea pigs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Neo-Mercazole, Vidalta
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 1–2 mg/kg | q24h | Hyperthyroidism | Moderate | Ewringmann A, Gloeckner B. Leitsymptome bei Meerschweinchen, Chinchilla und Degu, Enke, Stuttgart, Germany; 2012. / Mayer J, Wagner R, Taeymans O. Advanced diagnostic approaches and current management of thyroid pathologies in guinea pigs. Vet Clin North Am Exot Anim Pract. 2010;13:509-523. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.799 (2026-08-01, PENDING REVIEW) doi:10.1055/b-004-129947 |
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These ranges are per kg. Enter your guinea pig's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Prodrug rapidly converted to methimazole, which inhibits thyroid peroxidase enzyme, blocking thyroid hormone synthesis.
Similar side effects as methimazole. Monitor CBC (agranulocytosis risk), liver enzymes, renal function. Better GI tolerance than methimazole in some cats.
Species-specific contraindications and adverse-reaction reports for guinea pigs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Carbimazole dose range in guinea pigs, with cited source references: PO 1–2 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Carbimazole in guinea pigs: PO.
Carbimazole is indicated in guinea pigs for: Hyperthyroidism.
These are general warnings for Carbimazole across species; consult the guinea pig dosing table above for species-specific guidance. Similar side effects as methimazole. Monitor CBC (agranulocytosis risk), liver enzymes, renal function. Better GI tolerance than methimazole in some cats.
Why a species-specific page? Carbimazole pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in guinea pigs — 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.