The types segment of duodenal ulcer treatment segmentation classifies products by pharmacologic mechanism, revealing nuanced market dynamics beyond broad applications. Within acid suppressors, subtypes include proton pump inhibitors (e.g., omeprazole, esomeprazole) and H2‑receptor antagonists (e.g., ranitidine, famotidine), together representing the bulk of revenue due to superior efficacy and safety profiles. Antibiotic‑based regimens form the core of the H. pylori eradication subtype, typically comprising a triple therapy (clarithromycin, amoxicillin, and a PPI) or quadruple therapy that adds bismuth; these combinations command a sizable share of the eradication market despite rising resistance concerns. Cytoprotective agents constitute the mucosal protection subtype, with sucralfate and misoprostol offering niche benefits for patients with contraindications to acid suppression. Each type’s market contribution is proportional to its clinical adoption rate, reimbursement landscape, and patent status, enabling precise forecasting of growth trajectories across the duodenal ulcer treatment taxonomy.