Buy CABERGOLINE 0.5 MG (GENERIC DOSTINEX) is a dopamine receptor agonist. It works by reducing the amount of prolactin (a hormone) that is released from the pituitary gland.Cabergoline is used to treat a hormone imbalance in which there is too much prolactin in the blood (also called hyperprolactinemia).Cabergoline may also be used for purposes not listed in this medication guide.