Recruited patients will be evaluated at nine time points: a baseline prior to treatment (t = -7 days), an assessment one week after treatment has begun (t = 7 days), two weeks after (t = 14 days), three weeks after (t = 21 days), four weeks after (t = 28 days), five weeks after (t = 35 days), six weeks after (t = 42 days), seven weeks after (t = 49 days) and after 8 weeks of treatment (t = 56 days). Evaluation of cognition, mood and anxiety, will be done blind to which time point is being measured.