Dexilant (dexlansoprazole) is part of the Proton Pump Inhibitors drug class. It is prescribed to individuals suffering from gastroesophageal reflux disease (GERD), inflammation of the esophagus and heartburn. Dexilant prevents the production of acid in the stomach. When acid is overproduced in the stomach, it can overflow into the esophagus, causing GERD, heartburn and other issues. Currently, there are no generic forms available. You can save on your medication costs with our Dexilant coupon below.