Cabergoline 0.5mg is used to treat a number of health issues that happen when the hormone prolactin is made in large amounts. People who are having trouble with their periods, getting pregnant, or having a pituitary prolactinoma can use it.Cabgolin 0.25mg Tablet is used to treat problems like infertility or breast milk production issues that happen when the body makes too much of a hormone called prolactin. If you have been sitting or lying down, get up slowly. This will lower the chance that you will get dizzy or pass out.