Overview Does Omeprazole Decrease Intestinal Calcium Absorption? Status: Completed Trial end date: 2010-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to measure the effect of omeprazole on intestinal calcium absorption in postmenopausal women. Phase: Phase 4 Details Lead Sponsor: University of Wisconsin, MadisonTreatments: Calcium, DietaryOmeprazole