For instance, Cabergoline (Dostinex) is one drug used for pituitary prolactinomas. Here's a direct quote from the safety information on this drug:
Postmarketing Surveillance Data
The following events have been reported in association with Cabergoline: valvulopathy and fibrosis. Other events have been reported in association with Cabergoline: hypersexuality, increased libido, pathological gambling. In addition, during postmarketing surveillance, cases of alopecia, aggression and psychotic disorder have been reported in patients taking Cabergoline. Some of these reports have been in patients who have had prior adverse reactions to dopamine agonist products.
