Pocket Pet · Mustela putorius furo · typical adult weight 0.60–2.00 kg
Finasteride is dosed at 5 mg/kg PO q24h in ferrets, per Rosenthal K. Endocrine disorders of ferrets: insulinoma and adrenal gland disease. Annu Waltham/OSU Symp Treat Small Anim Dis: Exotics Proc 21st; 1997:35-38. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.949 — Carpenter's Exotic Animal Formulary 6th ed, Table 11.8 (Endocrine and Reproductive Disease Agents Used in Ferrets). 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. Finasteride is used in ferrets for Benign prostatic hyperplasia associated with adrenal gland disease. Routes documented in ferrets: PO. A typical adult ferret weighs 0.60–2.00 kg. ExoticRx lists 1 cited dose rule for Finasteride in ferrets, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Proscar, Propecia
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 5 mg/kg | q24h | Benign prostatic hyperplasia associated with adrenal gland disease | Weak | Rosenthal K. Endocrine disorders of ferrets: insulinoma and adrenal gland disease. Annu Waltham/OSU Symp Treat Small Anim Dis: Exotics Proc 21st; 1997:35-38. — Source: Carpenter's Exotic Animal Formulary, 6th Ed, p.949 — Carpenter's Exotic Animal Formulary 6th ed, Table 11.8 (Endocrine and Reproductive Disease Agents Used in Ferrets). 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 |
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 |
|---|---|---|---|
| 5 | PO | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.146 | 5 mg/kg p.o. q24h |
| 5 | PO | Carpenter's Exotic Animal Formulary, 6th edTable 11.8 | 5 mg/kg PO q24h |
| Dose (ml/kg) | Route | Source | As printed |
|---|---|---|---|
| 3–6 | PO | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.147 | spray 3-6 ml/kg (6-12 pumps/kg 100 ml application) q30-60d; One spot-on pipette of 0.5 ml/animal (50 mg f |
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.
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These ranges are per kg. Enter your ferret's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits 5-alpha reductase type II, blocking conversion of testosterone to dihydrotestosterone (DHT). Reduces prostate size.
Used for benign prostatic hyperplasia in dogs. Teratogenic — do not handle crushed tablets during pregnancy. Effects take weeks. Does not affect libido.
Species-specific contraindications and adverse-reaction reports for ferrets may differ from canine / feline reference data — consult the primary citations listed with each rule.
Finasteride dose range in ferrets, with cited source references: PO 5 mg/kg q24h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Finasteride in ferrets: PO.
Finasteride is indicated in ferrets for: Benign prostatic hyperplasia associated with adrenal gland disease.
These are general warnings for Finasteride across species; consult the ferret dosing table above for species-specific guidance. Used for benign prostatic hyperplasia in dogs. Teratogenic — do not handle crushed tablets during pregnancy. Effects take weeks. Does not affect libido.
Why a species-specific page? Finasteride pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in ferrets — 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.