* During this switch ECG monitoring is advisable, because especially in patients prone to QT-conduction problems.* There is a possibilty of possible QT interval prolongation.<ref> Stöllberger C, Huber JO, Finsterer J, [http://www.ncbi.nlm.nih.gov/pubmed/16096514?ordinalpos=6&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum Antipsychotic drugs and QT prolongation]. Int Clin Psychopharmacol. 2005 Sep;20(5):243-51.</ref>