The injections of ZIO-101 will take approximately one hour. Following the first injection only, you will have 6 samples of blood taken at 0.5, 1, 2, 4, 8 and 12 hours. Additional blood samples will be taken prior to each dose of ZIO-101 only. You will also have repeat EKG within one hour after completing the injection. This process will be repeated for 5 consecutive days.