title: Primary prevention of ulcers in patients taking aspirin or NSAIDs.
mesh_terms: D000863:Antacids / Q000627:therapeutic use; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D001241:Aspirin / Q000009:adverse effects*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use; D006801:Humans; D016595:Misoprostol / Q000627:therapeutic use; D010437:Peptic Ulcer / Q000517:prevention & control*; D054328:Proton Pump Inhibitors / Q000627:therapeutic use
chemical_list: D000863:Antacids; D000894:Anti-Inflammatory Agents, Non-Steroidal; D006635:Histamine H2 Antagonists; D054328:Proton Pump Inhibitors; D016595:Misoprostol; D001241:Aspirin