title: Rapid deterioration in patients with parkinsonism following tryptophan-pyridoxine administration.
mesh_terms: D000328:Adult; D001921:Brain / Q000378:metabolism; D004357:Drug Synergism; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy* / Q000378:metabolism; D011736:Pyridoxine / Q000009:adverse effects*; D011930:Reaction Time; D014364:Tryptophan / Q000009:adverse effects* / Q000378:metabolism
chemical_list: D014364:Tryptophan; D011736:Pyridoxine