Lanzol 30 Capsule contains Lansoprazole 30 mg, a proton pump inhibitor (PPI) used primarily to reduce gastric acid secretion. It is indicated for the treatment of gastroesophageal reflux disease (GERD), erosive esophagitis, Zollinger-Ellison syndrome, and peptic ulcer disease, including Helicobacter pylori eradication when used in combination therapy. Lansoprazole acts by irreversibly inhibiting the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells, thereby suppressing the final step of acid production. This reduction in gastric acidity promotes healing of ulcers and erosive conditions and alleviates symptoms such as heartburn and acid regurgitation. Lanzol 30 Capsule is typically administered orally once daily before meals, with dosage adjustments based on clinical response and severity of the condition. It is generally well tolerated; however, potential side effects include headache, diarrhea, abdominal pain, nausea, and rare hypersensitivity reactions. Caution is advised in patients with liver impairment and those on concomitant medications metabolized by the cytochrome P450 system due to possible drug interactions. Long-term use should be monitored to avoid risks such as vitamin B12 deficiency or bone fractures. Lanzol 30 Capsule offers effective acid suppression for managing acid-related gastrointestinal disorders under medical supervision.