A 55-year-old man presents with epigastric pain related to meals and night-time waking. He takes Ibuprofen regularly for back pain. There are no alarm symptoms. What is the most appropriate initial management in primary care?AImmediate upper GI endoscopyBStart a proton pump inhibitor and review response, while considering stopping NSAIDsCStart long-term H2-receptor antagonist without further assessmentDTest and treat for Helicobacter pylori without stopping NSAIDsEProvide reassurance onlyCheck my answer