 On the morning of Day 1 of each period, after at least an 8 hour fast, subjects will receive a single dose of study drug according to the randomly assigned treatment sequence. After dosing, subjects will be monitored for 23 hours using a continuous 12 lead ECG Holter monitor. At the ECG core laboratory, 4 ECGs will be extracted approximately 1 minute apart at 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 18, and 23 hours Day 2 after dosing. The ECGs will be extracted from Holter recording flashcards during a 10 minute ECG extraction window that will end at the onset of each pharmacokinetic PK collection nominal time point. Each ECG extraction window will be preceded by a 10 minute supine rest period. 