ExoticRx · exoticrx.com/drugs/gonadorelin-gnrh
Factrel, Fertagyl, Cystorelin, OvaCyst
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.
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.
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
Upgrade to Pro or Student to access full drug details including mechanism of action, warnings, dose ranges, and frequency.
View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.