Madmen. I took gaviscon for a couple of weeks just recently because I had tummy problems, including indigestion, etc. It just didn't work. Doc has prescribed a pill to take once a day, Lansoprozole, and it has worked well. I am not suggesting you need the medicine I take, but just that it is worth discussing this with a GP. Constant tummy ache is something to see a GP about. Take care.