Berkley Jensen 24 Hour Lansoprazole is an acid reducer. It has clinically been proven to treat frequant heartburn. This pack includes 3 bottles of Lansoprazole containing 14 capsules in each bottle. Product Features: May take 1-4 days for full effect Some may experience complete relief of symptoms within 24 hours Clinically proven to treat frequent heartburn Includes 3 bottles of 14 capsules each, 42 total