Bromocriptine belongs to the group of medicines known as ergot alkaloids. Bromocriptine blocks the release of a hormone called prolactin from the pituitary gland. Prolactin affects the menstrual cycle and milk production.
Bromocriptine is used to treat certain menstrual problems (e.g., amenorrhea) in women and stops milk production in some men and women who have abnormal milk leakage. It is also used to treat infertility in both men and women that occurs because the body is making too much prolactin.
Bromocriptine is also used to treat acromegaly (overproduction of growth hormone) and pituitary prolactinomas (tumors of the pituitary gland). Bromocriptine is also used to treat the signs and symptoms of Parkinson's disease, often in combination with levodopa Bromocriptine is also used together with a proper diet and exercise to treat high blood sugar levels in patients with type 2 diabetes.