@article{3147235, title = "Doubtful association of antipsychotic polypharmacy and high dosage with cognition in chronic schizophrenia", author = "Kontis, Dimitrios and Theochari, Eirini and Kleisas, Spyridon and and Kalogerakou, Stamatina and Andreopoulou, Angeliki and Psaras, Rafael and and Makris, Yannis and Karouzos, Charalambos and Tsaltas, Eleftheria", journal = "Progress in Neuro-Psychopharmacology and Biological Psychiatry", year = "2010", volume = "34", number = "7", pages = "1333-1341", publisher = "PERGAMON-ELSEVIER SCIENCE LTD", issn = "0278-5846", doi = "10.1016/j.pnpbp.2010.07.029", keywords = "CANTAB; Cognition; Excessive dosage; Polypharmacy; Schizophrenia", abstract = "Despite consistent recommendations for antipsychotic monotherapy, antipsychotic polypharmacy (the use of two or more antipsychotic agents) and the administration of excessive doses (higher than 1000 mgr/day of chloropromazine equivalents) is a common practice in schizophrenia The therapeutic and adverse effects of this practice are poorly studied, in particular with regards to the cognitive symptoms of the disease In this cross-sectional study we investigated the cognitive effects of antipsychotic polypharmacy and excessive doses in 53 patients with chronic schizophrenia using non-verbal cognitive tasks involving speed of movement, memory and executive functions No significant difference in performance scores was found between the groups under polypharmacy and monotherapy, or the groups receiving either excessive or normal closes of antipsychotics. Since these groups did not also differ in demographic, clinical, other pharmacologic parameters, in the relative anticholinergic potency of antipsychotics, or in intelligence scores, we raise doubts about the association of polypharmacy and excessive doses with non-verbal cognitive performance in chronic schizophrenia (C) 2010 Elsevier Inc All rights reserved" }