My husband has had stomach pain for several years. Doctors prescribed ulcer meds, but they never worked... They only eased the pain. Family doc. finally sent him to a speciallist who did an ultra-sound, colonoscopy (up from the bottom), EGD? (down from the top) and took biopsy of stomach fluids. Everything looked good, except the biopsy tested positive for an infection in his digestive system. Doctor prescribed "PrevPac" for 14 days, to treat the infection. Because the doctor was talking to me on the phone, and because he has such a thick accent; I could not understand the name of the infection. After asking twice, "What is the name of the infection?"... I gave up. Am hoping you might be able to help me with that.