Active Ingredients:Compare to the active ingredients of Pepcid Complete Heartburn Relief:Just one dual action tablet relieves heartburn due to acid indigestion for adults and children ages 12 years and over Acid Reducer:When stomach acid backs up into the esophagus, here is a chewable, berry flavor tablet for heartburn relief; no water required; great when you are on the go Dual Action Complete:One acid reducer and two antacids work together to relieve acid indigestion and sour stomach known as heartburn; famotidine 10 mg, acid reducer; calcium carbonate 800 mg, antacid; magnesium hydroxide 165 mg, antacid Heartburn Relief Tips:Do not lie flat or bend over after eating; do not eat before bedtime; eat slowly and avoid big meals