Causes and factors related to dopamine agonist withdrawal in Parkinson's disease.

Background: Although dopamine agonists (DAs) are useful in Parkinson's disease (PD), they are not frequently used in elderly patients due to adverse effects. However, there is a lack of evidence because few elderly PD patients are enrolled in clinical trials.

Aims Of The Study: The aims of this study were to analyze the reasons of DA withdrawal (DAW) in a group of PD patients in clinical practice and to identify the related factors.