Ometab 20mg Tablet DR contains Omeprazole 20mg, a proton pump inhibitor indicated for the treatment of gastroesophageal reflux disease (GERD), peptic ulcer disease, Zollinger-Ellison syndrome, and other conditions involving excessive gastric acid secretion. Omeprazole acts by irreversibly inhibiting the H+/K+ ATPase enzyme system located on the gastric parietal cells, thereby suppressing gastric acid production and promoting ulcer healing. The delayed-release formulation ensures that the active ingredient is protected from degradation by gastric acid, allowing for optimal absorption in the intestine. Ometab 20mg is typically administered once daily before meals, with the dosage and duration tailored according to the specific condition and patient response. Common adverse effects may include headache, abdominal pain, nausea, diarrhea, and flatulence, though the medication is generally well tolerated. Caution is advised in patients with hepatic impairment, and long-term use should be monitored due to potential risks such as vitamin B12 deficiency, hypomagnesemia, and increased susceptibility to gastrointestinal infections. Ometab 20mg should be used under medical supervision, with adherence to prescribed dosage and duration to ensure efficacy and minimize adverse effects. It is contraindicated in patients with known hypersensitivity to Omeprazole or other proton pump inhibitors.