I was tested positive for H pylori over 25 years ago, also a dudonal stomach ulcer. In (2015)i was told by a Dr in Canada to lay off the lazaprasels. So i stopped taking them. The acid returned, so i've been battling it ever since. I found Pylopurge online on my return to the UK, followed for a while, then took the plunge. I'm still on my first month, but notice a massive difference already. I really hope no more or little stomach acid. So far, so good 5*