title: Prolonged symptoms of brain dysfunction--adverse effect of levodopa.
abstract: Symptoms of brain dysfunction occurred in a 67-year-old woman with idiopathic parkinsonism on treatment with levodopa. The adverse effect reappeared in a more severe and prolonged form when she was treated one year later with levodopa in combination with the peripheral decarboxylase inhibitor Ro-4-4602. The symptoms were associated with a markedly altered level of HMPG (a noradrenaline metabolite) in the cerebrospinal fluid.
mesh_terms: D000368:Aged; D001545:Benserazide / Q000627:therapeutic use; D001927:Brain Diseases / Q000139:chemically induced*; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007980:Levodopa / Q000009:adverse effects* / Q000627:therapeutic use; D010300:Parkinson Disease / Q000188:drug therapy*; D013997:Time Factors
chemical_list: D007980:Levodopa; D001545:Benserazide