Sorry, I haven't read your previous posts, so don't know the full story, but if you are dealing with pancreatic problems, you should stay away from any and all antacids. All - OTC, like Tums and PeptoBismol, as well as prescription, like Zantac. If you study the historical charts of Pancreatic Cancer, you will see that as people's intake of antacids increased over the years, the incidence of pancreatic cancer has skyrocketed proportionately.

Assist your pancreas by supplementing with probiotic culture - kefir, or probiotic capsules. Braggs or other organic apple cider vinegar w/mother, alternated with baking soda in water (one could be in the AM, one in the PM) is good therapy too. All of the above assist the pancreas in producing enough of the required enzymes for proper digestion. The more effortless the digestion, the less stress on the pancreas. Modern pharma, coupled with modern diet, have wreaked havoc on our body's balance and its ability to easily and properly digest.

NB. Those are suggestions for your own research, btw, not pescriptions. ;)