30 mg/40 mg of esoheal D By reducing symptoms like heartburn, stomach pain, or irritation, Capsule SR is a prescription medication used to treat indigestion and gastroesophageal reflux disease (also known as acid reflux). Overproduction of acid in the stomach is a chronic (long-term) ailment known as gastroesophageal reflux disease (GERD). 30 mg/40 mg of esoheal D Capsule SR lessens the production of stomach acid and eases the discomfort of acid reflux and heartburn. For it to be successful, you must take it precisely as directed. A few easy lifestyle adjustments can help lessen GERD symptoms.