The purpose of this survey is to evaluate the safety (that is, frequency of adverse events)
and efficacy (that is, hemostatic effect, rate of rebleeding after confirmation of
hemostasis) of administration of lansoprazole intravenous 30 milligram (mg) (Takepron
Intravenous 30 mg ) to a large number of participants with acute stress ulcer or acute
gastric mucosal lesion in daily medical practice.