For non-functional pituitary macroadenomas, how effective has cabergoline been in reducing tumor size or preventing the need for surgery?  

There is some literature suggesting that a modest effect is seen in preventing tumor regrowth in previously operated NFPA (Treatment of clinically nonfunctioning pituitary adenomas with dopamine agonists). The data on primary therapy is less convincing.Topic reviewed recently in Pharmacological Trea...

Not effective.