title: On/off syndrome in Parkinson's disease and intravenous levodopa.
mesh_terms: D001921:Brain / Q000378:metabolism; D006801:Humans; D007263:Infusions, Parenteral; D007980:Levodopa / Q000008:administration & dosage* / Q000378:metabolism; D010300:Parkinson Disease / Q000188:drug therapy* / Q000378:metabolism / Q000503:physiopathology
chemical_list: D007980:Levodopa