Rabeprazole Specific Clinical Experience Investigation for the Long-term Combination Therapy With Low-dose Aspirin

Inclusion criteria: 1. Patients taking long-term low-dose aspirin for prevention of thrombus/embolism at the start of administration of rabeprazole (including patients who start low-dose aspirin on the same day as the start of administration of rabeprazole). 2. Patients with a history of gastric/duodenal ulcers. 3. Patients requiring long-term use of rabeprazole for prevention of recurrence of gastric/duodenal ulcers induced by low-dose aspirin. Exclusion criteria: 1. Patients with gastric/duodenal ulcers at the start of administration of rabeprazole. 2. Patients with active upper gastrointestinal bleeding at the start of administration of rabeprazole. 3. Patients with contraindication for rabeprazole.