Merelanz Tablet DT Mango contains Lansoprazole 15 mg, a proton pump inhibitor used to reduce gastric acid secretion in the treatment of various acid-related gastrointestinal conditions. Lansoprazole acts by selectively inhibiting the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells, thereby suppressing the final step of acid production. This medication is indicated for the management of gastroesophageal reflux disease (GERD), erosive esophagitis, duodenal and gastric ulcers, Zollinger-Ellison syndrome, and prevention of gastric ulcers associated with nonsteroidal anti-inflammatory drug (NSAID) use. Merelanz Tablet DT Mango is formulated as a dispersible tablet with a mango flavor, facilitating ease of administration, especially in patients who have difficulty swallowing conventional tablets. The dispersible nature allows rapid disintegration in the mouth or water without the need for swallowing whole tablets, enhancing patient compliance. It is recommended to be taken before meals, preferably in the morning, to maximize acid suppression. Common side effects may include headache, abdominal pain, nausea, diarrhea, and dizziness. Use with caution in patients with hepatic impairment. Lansoprazole should be used under medical supervision, and patients should adhere to prescribed dosages to avoid potential adverse effects or drug interactions.