“…We have observed, in an open parallel group study, that, compared with levodopa/carbidopa, patients taking an evening dose of cabergoline rated their sleep quality and clinical global state to be improved by 88% compared with 27% on levodopa/ carbidopa. 36 A small comparative trial (33 patients on cabergoline and 28 on pergolide) reported that, when compared to pergolide, another commonly used dopamine agonist with a half-life of 7-16 hours, cabergoline was more effective in reducing nocturnal waking, early morning dystonia and dystonic pain. 37 A small multicentre, video-blinded, crossover trial comparing cabergoline (up to 6 mg once daily) and pergolide (up to 5 mg three times daily) reported similar motor improvement in both groups, although cabergoline was significantly more effective in improving 'off' period related motor scores after eight weeks of treatment.…”