On Day 14, study personnel will see you in the clinic or the Ambulatory Treatment Center where blood pressure and pulse will be measured. Unused study medication will be returned and your diary will be reviewed with the delegated research personnel. You will complete questionnaires asking about fatigue, sleep, depression, and symptoms. It should take about 15 minutes to complete them. You will also complete a series of tests for memory, visual-motor, and thinking functions. The tests should take about 30 minutes to complete. A blood draw will be done to look for changes in hemoglobin and for cytokine analysis.