Dexilant (dexlansoprazole) is a medication used to treat certain stomach and esophagus problems, such as acid reflux, heartburn, and gastroesophageal reflux disease (GERD). It works by decreasing the amount of acid produced in the stomach, helping to relieve symptoms like heartburn and acid regurgitation. The 30 mg dosage of Dexilant is commonly prescribed for adults. It is usually taken once daily, with or without food, and should be swallowed whole (not crushed or chewed). It’s important to follow your doctor’s instructions and not exceed the prescribed dosage.