Emep 20 mg Tablet contains Esomeprazole Magnesium, a proton pump inhibitor (PPI) that reduces stomach acid production. It is prescribed to treat conditions caused by excess stomach acid such as acid reflux, gastroesophageal reflux disease (GERD), peptic ulcers, and erosive esophagitis. It also supports the treatment of Helicobacter pylori infections when used with antibiotics.