Bromocriptine is a dopamine receptor agonist that is commonly used to treat pituitary prolactinomas. Because of the abnormal secretion of microadenomas caused by pituitary tumors, increased levels of prolactin occur, which causes symptoms of lactation, amenorrhea, and inability to function reproductively in women. In addition, this drug also has a significant inhibitory effect on prolactin secretion and has an effect on the pituitary gland, so it can be used to treat various causes of amenorrhea, overflow, PMS, female infertility, and acromegaly.