(Bayer) OvaCyst is indicated for the treatment of ovarian follicular cysts in cattle. Each ml of OvaCyst solution contains 50 micrograms of synthetic gonadorelin (GnRH) diacetate tetrahydrate. Synthetic gonadorelin is physiologically and chemically identical to the endogenous bovine hypothalmic releasing factor. The recommended dosage of OvaCyst is 2 ml per cow, given IM or IV. Gonadorelin (GnRH) diacetate tetrahydrate.