title: Inefficacy of tryptophan-pyridoxine in essential tremor.
mesh_terms: D001479:Basal Ganglia / Q000187:drug effects / Q000378:metabolism; D004295:Dihydroxyphenylalanine / Q000378:metabolism; D004357:Drug Synergism; D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000378:metabolism; D011736:Pyridoxine / Q000008:administration & dosage*; D014202:Tremor / Q000188:drug therapy* / Q000378:metabolism; D014364:Tryptophan / Q000008:administration & dosage*
chemical_list: D004295:Dihydroxyphenylalanine; D014364:Tryptophan; D011736:Pyridoxine