OvaCyst Injection (gonadorelin) is indicated for the treatment of ovarian follicular cysts in dairy cattle. Ovarian cysts are non-ovulated follicles with incomplete luteinization which result in nymphomania or irregular estrus. Historically, cystic ovaries have responded to an exogenous source of LH such as human chorionic gonadotropin. OvaCyst initiates release of endogenous LH to cause ovulation and luteinization. See package insert for complete product details.