Compare to Prevacid 24 HR active ingredient. Equate Lansoprazole Delayed-Release Capsules 15 mg stops acid production at the source - the pumps that release acid into the stomach. Clinically proven in treating frequent heartburn. Taken once a day (every 24 hours), every day for 14 days; may take 1 to 4 days for full effect. Take in the morning before eating. The acid reducer lansoprazole is a Proton Pump Inhibitor (PPI) for adults (18 years and older) with frequent heartburn - when you have heartburn 2 or more days a week. In three clinical studies, Equate Lansoprazole Delayed-Release Capsules 15 mg was shown to be significantly better than placebo in treating frequent heartburn. Tips for managing heartburn: avoid foods or drinks that are more likely to cause heartburn, such as rich, spicy, fatty and fried foods, chocolate, caffeine, alcohol and even some acidic fruits and vegetables; eat slowly and do not eat big meals; do not eat late at night or just before bedtime; do not lie flat or bend over soon after eating; raise the head of your bed; wear loose-fitting clothing around your stomach; if you are overweight, lose weight; if you smoke, quit smoking.