Cabergoline 0.5mg is the medication prescribed to treat too high prolactin hormone levels in the body. Women who have prolactin excess may find it more difficult to conceive and experience symptoms including missed periods and unwelcome breast milk. High prolactin levels in men could cause symptoms including reduced libido or desire and bigger breasts. An ergot medicine called cabgoline 0.5mg blocks the pituitary gland’s prolactin releasing capacity.