Being psychotic Presence of other psychiatric disorders Using other psychiatric drugs or any drug which can affect cognitive performance History of ECT during past 2 months Presence of thyroid disease Presence of kidney disease Presence of liver disease History of cognitive impairment or dementia Pregnant or lactating women

Being psychotic Presence of other psychiatric disorders Using other psychiatric drugs or any drug which can affect cognitive performance History of ECT during past 2 months Presence of thyroid disease Presence of kidney disease Presence of liver disease History of cognitive impairment or dementia Pregnant or lactating women