@hogan_g1937 I was hospitalized for vomiting blood 13 yrs. ago. Diagnosis – ulcer caused from h pylori. After getting my stomach pumped & 5 days in the hosital I was sent home with a description for the helidac (if I'm spelling it right) pac. It was an awful tasting syrup like substance that made me sick every time I took it but the doctor said I had to finish the bottle to get cured. I have tested negative multiple times since then. Yes I was told it has been linked to stomach cancer but so far so good in that respect. For now the goal is for him to become h pylori negative. It has only been linked to some cases of stomach cancer but not a guarantee that it will cause stomach cancer.