Study of intragastric pH profile after 5 days pantoprazole 40 mg iv followed by oral esomeprazole 40 mg po or oral pantoprazole 40 mg po

Inclusion Criteria

• - Provision of informed consent.
• - Males and females aged 18 to 70 years, inclusive.
• - Male or non-pregnant, nonlactating female healthy volunteer subjects. Females must be post-menopausal, surgically sterilized, or using a medically acceptable form of birth control, as determined by the investigator. Women of childbearing potential must agree to continue using an acceptable form of birth control throughout the conduct of the study.