Cabergoline is a potent, D2-selective new dopamine agonist with a half-life
of 65 hours. We report two cases and review the literature on cabergoline
in prolactinomas. Cabergoline appears to be more effective and better toler
ated than bromocriptine, compliance may be improved, and costs are comparab
le, In cases of bromocriptine failure, unusually high starting doses of cab
ergoline may be necessary. Cabergoline may eventually replace bromocriptine
as the drug of choice in prolactinomas.