Gonadorelin (GnRH) for Horse
Equine · Equus caballus · typical adult weight 350.00–700.00 kg
Gonadorelin (GnRH) is used in horse for Ovulation induction, ovarian cysts. Routes documented in horse: IV. A typical adult horse weighs 350.00–700.00 kg. ExoticRx lists 1 cited dose rule for Gonadorelin (GnRH) in horse, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Factrel, Fertagyl, Cystorelin, OvaCyst
Dose ranges
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IV | 50–100 mcg total dose | As needed | Single or repeated doses | Ovulation induction, ovarian cysts | Moderate | Plumb's Veterinary Drug Handbook |
Need the exact dose for your patient?
These ranges are per kg. Enter your horse's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Mechanism of action
Synthetic gonadotropin-releasing hormone (GnRH) that stimulates release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the anterior pituitary. Causes ovulation or luteinization of follicles.
Side effects & warnings
Used in timed AI protocols (Ovsynch, CoSynch) in cattle. No withdrawal period required. Response depends on stage of estrous cycle and presence of a dominant follicle.
Species-specific contraindications and adverse-reaction reports for horse may differ from canine / feline reference data — consult the primary citations listed with each rule.
Other Endocrine drugs with horse dosing
Gonadorelin (GnRH) dosing in other species
Why a species-specific page? Gonadorelin (GnRH) pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in horse — 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.