The patients with PPD are usually sensitive to artane and to amantadine hydrochloride. Levodopa or levodopa preparations-induced movement disorders, on-off phenomenon and end of dose deterioration occur less in the patients with PPD. PPD患者普遍对安坦和金刚烷胺敏感,较少出现左旋多巴制剂所致的运动障碍、开关现象和剂末恶化。