Effective heartburn medicine: Esomeprazole Magnesium is an acid reducer that treats frequent heartburn (occurring 2 or more days a week; Stop heartburn at the source; Our Esomeprazole mini capsules inhibit the proton pumps in the stomach from producing excess acid; Comparable to the national brand: Has the same active ingredient as Nexium 24HR*; All-day heartburn relief: Take one mini capsule daily to treat heartburn for up to 24 hours; use as directed for 14 days; do not take for more than 14 days or more often than every 4 months unless directed by a doctor; Not for immediate relief: May take 1 to 4 days for full effect; see package label for warnings and other important information