Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Finasteride is used in dog for Benign prostatic hyperplasia. Routes documented in dog: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Finasteride in dog, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Proscar, Propecia
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.1–0.5 mg/kg | q24h | Months | Benign prostatic hyperplasia | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
Need the exact dose for your patient?
These ranges are per kg. Enter your dog'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 dog may differ from canine / feline reference data — consult the primary citations listed with each rule.
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 dog — 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.