Oldolan 10mg/20mg Capsule is a combination pharmaceutical formulation containing Domperidone 10mg and Omeprazole 20mg, indicated for the management of gastrointestinal disorders characterized by acid reflux, dyspepsia, and delayed gastric emptying. Domperidone, a peripheral dopamine D2 receptor antagonist, facilitates gastric motility and enhances esophageal sphincter tone, thereby alleviating symptoms such as nausea, vomiting, and bloating associated with gastroparesis and gastroesophageal reflux disease (GERD). Omeprazole, a proton pump inhibitor, suppresses gastric acid secretion by irreversibly inhibiting the H+/K+ ATPase enzyme system in the gastric parietal cells, promoting mucosal healing and symptom relief in acid-related conditions including peptic ulcers and erosive esophagitis. The synergistic action of Domperidone and Omeprazole in Oldolan capsules provides comprehensive symptomatic relief by addressing both motility dysfunction and acid hypersecretion. This combination is typically administered orally once daily before meals, with dosage adjustments based on clinical response and tolerability. Caution is advised in patients with cardiac arrhythmias, hepatic impairment, or known hypersensitivity to either component. Oldolan should be used under medical supervision to ensure optimal therapeutic outcomes and minimize potential adverse effects such as headache, dry mouth, or gastrointestinal disturbances.