During these first four weekly visits (Study Days 7, 14, 21, and 28), you will have several tests performed. During each visit, you will be asked questions about your medical history and the medications you used since the last visit. You will be asked questions about the doses of atiprimod you have taken on your own (number of tablets or capsules taken at each dose, time each dose was taken, if you ate food or drank something other than water, orange juice, soda, tea, or coffee during the 2 hours before or after taking study drug, and the number of glasses of water, orange juice, soda, tea, or coffee that you drank during this 4-hour period). You will have a physical exam, including measurement of your vital signs, routine blood (about 1 teaspoon) and urine tests. You will have an ECG at Day 28 only (not on Days 7, 14, or 21). You will also have a neurological exam. You will be asked questions about your physical, social/family, emotional, and functional well-being, as well as additional concerns you may have regarding numbness, tingling, discomforts, and difficulties you may be having.