Pocket Pet · Rattus norvegicus var. domestica · typical adult weight 0.25–0.70 kg
Ivermectin is dosed at 0.4 mg/kg SC Repeat at 14d in pet rats, per Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.777 (2026-08-01).. Ivermectin is used in pet rats for Fur mites / ear mites. Routes documented in pet rats: SC. A typical adult pet rat weighs 0.25–0.70 kg. ExoticRx lists 1 cited dose rule for Ivermectin in pet rats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Ivomec, Heartgard
Contraindicated in Tortoise / Turtle
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 0.4 mg/kg | Repeat at 14d | Fur mites / ear mites | Moderate | Morrisey JK, Carpenter JW. Formulary. In: Quesenberry KE, Carpenter JW, eds. Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery, 4th ed., Elsevier, St. Louis, MO; 2021:620-630. — Verified against Carpenter's Exotic Animal Formulary, 6th Ed, p.777 (2026-08-01). |
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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.
Potentiates glutamate-gated chloride channels in invertebrate nerve and muscle cells, causing paralysis and death of parasites.
TOXIC to MDR1-mutant dogs (Collies, Shelties, Aussies) at elevated doses. DO NOT use in chelonians (turtles/tortoises). Narrow safety margin in some species. Test MDR1 status before use in herding breeds.
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.
Ivermectin dose range in pet rats, with cited source references: SC 0.4 mg/kg Repeat at 14d. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Ivermectin in pet rats: SC.
Ivermectin is indicated in pet rats for: Fur mites / ear mites.
These are general warnings for Ivermectin across species; consult the pet rat dosing table above for species-specific guidance. TOXIC to MDR1-mutant dogs (Collies, Shelties, Aussies) at elevated doses. DO NOT use in chelonians (turtles/tortoises). Narrow safety margin in some species. Test MDR1 status before use in herding breeds.
Why a species-specific page? Ivermectin 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.