The purpose of this study is; To investigate whether a pellets based sachet formulation of D961H 20 mg (D961H sachet 20 mg) is bioequivalent to a commercial HPMC capsule of D961H 20 mg (D961H HPMC capsule 20 mg) after repeated oral doses by the assessment of percentage of time with intragastric pH>4 during 24 hours after dose on Day 5.~To compare a D961H sachet 20 mg with a D961H HPMC capsule 20 mg after repeated oral doses by the assessment of percentage of time with intragastric pH>3 during 24 hours and 24-hour median pH after dose on Day 5~To compare PK properties of a D961H sachet 20 mg with those of D961H HPMC capsule 20 mg after repeated oral doses by the assessment of AUCτ, Cmax,ss, AUC0-t,ss, MRT, tmax,ss, and t1/2,ss of esomeprazole after dose on Day 5.~To evaluate the safety and tolerability of a D961H sachet 20 mg and D961H HPMC capsule 20 mg by the assessment of adverse events, clinical laboratory tests, blood pressure (BP), pulse rate and body temperature.
The purpose of this study is; To investigate whether a D961H sachet 20 mg is bioequivalent to a D961H HPMC capsule 20 mg by the assessment of percentage of time with intragastric pH>4.~To compare a D961H sachet 20 mg with a D961H HPMC capsule 20 mg by the assessment of percentage of time with intragastric pH>3 during 24 hours and 24-hour median pH.~To compare PK properties of a D961H sachet 20 mg with those of D961H HPMC capsule 20 mg.~To evaluate the safety and tolerability of a D961H sachet 20 mg and D961H HPMC capsule 20 mg.