Jenberg 20 Tablet contains Rabeprazole 20mg, a proton pump inhibitor (PPI) indicated for the treatment of various acid-related gastrointestinal disorders. Rabeprazole acts by selectively inhibiting the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells, thereby suppressing gastric acid secretion. This medication is commonly prescribed for conditions such as gastroesophageal reflux disease (GERD), erosive esophagitis, Zollinger-Ellison syndrome, and peptic ulcer disease, including those associated with Helicobacter pylori infection when used in combination therapy. Jenberg 20 is effective in reducing symptoms like heartburn, acid regurgitation, and epigastric pain, promoting mucosal healing and preventing complications related to acid hypersecretion. The onset of action typically occurs within hours, with a duration of acid suppression lasting up to 24 hours, allowing for once-daily dosing. It is generally well-tolerated; however, potential adverse effects may include headache, diarrhea, nausea, abdominal pain, and rare hypersensitivity reactions. Caution is advised in patients with hepatic impairment, and long-term use should be monitored to avoid risks such as vitamin B12 deficiency and bone fractures. Jenberg 20 Tablet should be used under medical supervision, adhering to prescribed dosage and duration to ensure optimal therapeutic outcomes.