Reptile · Pantherophis guttatus · typical adult weight 0.20–0.90 kg
Contraindicated in Tortoise / Turtle
Ivermectin is dosed at 0.2 mg/kg PO, SC, IM repeat in 14 days in corn snakes, per Flach EJ, Riley J, Mutlow AG, et al. Pentastomiasis in Bosc's monitor lizards (Varanus exanthematicus) caused by an undescribed Sambonia species. J Zoo Wildl Med. 2000;31:91-95. (co-cited: Klaphake E, Gibbons PM, Sladky KK, et al. Reptiles. In: Carpenter JW, eds. Exotic Animal Formulary, 5th ed., Elsevier, St. Louis, MO; 2018:81-166.) — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.227 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.4 (Antiparasitic Agents Used in Reptiles). Ivermectin is used in corn snakes for Nematodes (including lungworms), mites. Routes documented in corn snakes: PO, SC, IM. A typical adult corn snake weighs 0.20–0.90 kg. ExoticRx lists 1 cited dose rule for Ivermectin in corn snakes, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Ivomec, Heartgard
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO, SC, IM | 0.2 mg/kg | repeat in 14 days | Nematodes (including lungworms), mites | Weak | Flach EJ, Riley J, Mutlow AG, et al. Pentastomiasis in Bosc's monitor lizards (Varanus exanthematicus) caused by an undescribed Sambonia species. J Zoo Wildl Med. 2000;31:91-95. (co-cited: Klaphake E, Gibbons PM, Sladky KK, et al. Reptiles. In: Carpenter JW, eds. Exotic Animal Formulary, 5th ed., Elsevier, St. Louis, MO; 2018:81-166.) — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.227 — Carpenter's Exotic Animal Formulary 6th ed, Table 4.4 (Antiparasitic Agents Used in Reptiles).Compilation only — we have not located an independent source that prints this figure. |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 0.2 | SC | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.170 | 0.2 mg/kg s.c., p.o. once, repeat in 10-14 days until negative for parasites; may use as envi |
| 0.2 | PO | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 127.4 | 0.2 mg/kg PO, SC, IM, repeat in 14 days80,99 Snakes (except indigos), lizards (except skinks)37/nematodes (including lungworms),190 mites; can dilute with propylene glycol for oral |
| 0.2–0.4 | PO | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 | 0.2-0.4 mg/kg PO, SC, repeat q14d as needed52 Nematodes, including lungworms; mites |
| Dose (mg/l) | Route |
|---|
Typical range: 200–900 g
If provided, volume will be calculated alongside dose.
Reference only. Verify against current literature before clinical use.
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 corn snakes may differ from canine / feline reference data — consult the primary citations listed with each rule.
Ivermectin dose range in corn snakes, with cited source references: PO, SC, IM 0.2 mg/kg repeat in 14 days. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Ivermectin in corn snakes: PO, SC, IM.
Ivermectin is indicated in corn snakes for: Nematodes (including lungworms), mites.
These are general warnings for Ivermectin across species; consult the corn snake 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 corn snakes — 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.
| Source |
|---|
| As printed |
|---|
| 5–10 | TOPICAL | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 127.4 | 5-10 mg/L water topical spray q3-5d up to 28 days168 Snakes (except indigos), lizards (except skinks)/mites; less effective than fipronil; spray on skin and in newly cleaned cage, |
| 10 | — | Mader's Reptile and Amphibian Medicine and Surgery, 3rd edTable 128.2 | 10 mg/L × 60 min bath, repeat q14d prn52 Mites |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.