Multiple PK blood samples will be taken from Days 1-4 and Days 15-18. Tasigna® PK will be assessed after oral administration of 400 mg Tasigna® alone, and after oral administration of 400 mg Tasigna® with concomitant administration of 4000 mg calcium carbonate. Two two-day/one-night inpatient stays and four brief outpatient visits are required to accommodate all study procedures.