[Parkinson's disease].

Depression is a most common psychiatric complication of Parkinson's patients. Approximately 30% of Parkinson's patients show depressive mood changes. Loss of interest, feelings of hopelessness, marked loss of energy and psychomotor retardation are common depressive symptoms with parkinsonism. Suicidal ideations and delusions are less frequent in Parkinson's patients with depression in compared to endogenous depression. Somatic symptoms, like fatigue, constipation, headache, insomnia, loss of appetite, dizzinees and sweating are usually seen in Parkinson's patient with depression. Serotonin reuptake inhibitors and selegiline are recommended for the treatment of depression in parkinsonian patients.