10 mg/20 mg of omifyl D Acid reflux, also known as gastroesophageal reflux disease, is treated with capsules that reduce symptoms like heartburn, stomach pain, and irritation. Overproduction of acid in the stomach is a chronic (long-term) ailment known as gastroesophageal reflux disease (GERD). 10 mg/20 mg of omifyl D Acid reflux and heartburn are less painful when you take a capsule that lowers the amount of acid your stomach produces. For it to be successful, you must take it precisely as directed. A few easy lifestyle adjustments can help lessen GERD symptoms.