Ectoparasites in Pet Rats
Pocket Pet · Rattus norvegicus var. domestica · typical adult weight 0.25–0.70 kg
5 cited drugs treat Ectoparasites in pet rats: Amitraz, Doramectin, Fipronil, Ivermectin, Nitenpyram.
External parasites including fleas, ticks, mites, and lice. Isoxazolines, macrocyclic lactones, and pyrethroids each carry species-specific cautions (e.g. permethrin lethal in cats).
The overview above describes Ectoparasites across species; the citations below are the ExoticRx dose rules scoped to pet rats — a reference list, not new species-specific clinical guidance.
Amitraz(Mitaban, Taktic)
Antiparasitic| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| topical (local) | 1.4 mL concentrate per L water (dilution) | repeat q14d | Carpenter's rat row prints no course length. BSAVA Small Animal Formulary Part B, 10th ed., p.32 gives the same 1.4 ml/l for hamsters, rats and mice but at q7d, applied with a cotton bud; its gerbil entry runs the same dilution for 3-6 treatments. Treat the course length as unstated for rats. | Ectoparasites (mites / acariasis) | Moderate | Visser C, Wijnbergen A, Bleich A. Maeuse und ratten. In: Fehr M, Sassenburg L, Zwart P, eds. Krankheiten der Heimtiere, Schluetersche Verlagsgesellschaft, Hannover, Germany; 2015. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.776 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.2 (Antiparasitic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929 |
Doramectin(Dectomax)
Antiparasitic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 0.2–0.5 mg/kg | q7-14d x 2-3 treatments | Ecto- and endoparasites (mites, pinworms) | Moderate | Beck W, Pantchev N. Praktische Parasitologie bei Heimtieren, Schluetersche Verlagsgesellschaft MBH & Co, Hannover, Germany; 2006. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.776 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.2 (Antiparasitic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929 |
Fipronil(Frontline)
Antiparasitic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| topical | 7.5 mg/kg | q30-60d | Fleas, ticks and lice | Moderate | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.777 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.2 (Antiparasitic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929 |
Ivermectin(Ivomec, Heartgard)
Antiparasitic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| SC | 0.4 mg/kg | q7-14d (printed preferred 0.4 mg/kg q7d) | 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). — Carpenter's Exotic Animal Formulary 6th ed, Table 9.2 (Antiparasitic Agents Used in Rodents). Located 2026-08-05: the only table covering this species in which the drug's own row prints this dose. The copy held is an ebook conversion with no printed page numbers, so the table is the citable location. — SOURCE EDITION: Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929; Ferrets, Rabbits, and Rodents: Clinical Medicine and Surgery — ISBN 9780323484350, https://openlibrary.org/isbn/9780323484350 |
Nitenpyram(Capstar)
Antiparasitic| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 1 mg/kg | once | Fleas, flystrike | Moderate | Meredith A. BSAVA Small Animal Formulary: Part B: Exotic Pets, British Small Animal Veterinary Association, Quedgeley, Gloucester, UK; 2015. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.778 — Carpenter's Exotic Animal Formulary 6th ed, Table 9.2 (Antiparasitic Agents Used in Rodents). The copy held is an ebook conversion with no printed page numbers, so the table — not the page — is the citable location. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712; Carpenter's Exotic Animal Formulary — ISBN 9780323833929, https://openlibrary.org/isbn/9780323833929 |
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice. Verify against current literature before clinical use.