We have had experience in treating two patients with parkinsonism of which the first manifestation was depression. Case 1 was a 61-year-old woman. A diagnosis of depression had been made and repeated medication consisting mainly of antidepressants was given. However, the depressive state persisted and the signs of parkinsonism gradually became evident. The initial treatment with antidepressant drugs was replaced with one based on L-DOPA (400 mg a day). Subsequently, the symptoms of parkinsonism and depression diminished relatively rapidly. Case 2 was a 66-year-old man. His parkinsonism was suspected shortly after the onset, although the symptoms of depression were predominant. Similarly, the treatment based on L-DOPA (400 mg a day) relieved the symptoms of depression and parkinsonism rapidly. The present study described above indicates that parkinsonism should be suspected in cases of persistent depression and in patients who have depressive symptoms resistant to antidepressants, since parkinsonism may first manifest itself as depression.
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