title: Letter: Abrupt withdrawal of antiparkinsonian drugs in chronic schizophrenic patients.
mesh_terms: D000978:Antiparkinson Agents / Q000627:therapeutic use*; D001480:Basal Ganglia Diseases / Q000139:chemically induced / Q000517:prevention & control*; D002908:Chronic Disease; D006801:Humans; D012008:Recurrence; D012559:Schizophrenia / Q000188:drug therapy*; D013375:Substance Withdrawal Syndrome; D014149:Tranquilizing Agents / Q000009:adverse effects
chemical_list: D000978:Antiparkinson Agents; D014149:Tranquilizing Agents