Currently taking PPI twice daily for the treatment of LPR, Women who are pregnant or lactating, History of duodenal or gastric ulcer in the past 5 years, erosive esophagitis, or esophageal obstruction, History of any hypersecretory condition, History of Barrett's esophagus, History of hematemesis in the past 6 months, Currently taking ketoconazole, digoxin, Iron, ampicillin, theophylline, warfarin, or sucralfate, or Suspected disease of the larynx not related to LPR.