Please be aware that if you are having an acid stomach problem 2 days a week or more, that you need to get on a proton pump inhibitor like Nexium, Prilosec OTC, etc. The long term consedquense is the possible development of Barrett's esophogus which can transform into esophogeal cancer, and is the primary precursor to it. Chronic use of conventional anti-acids instead of a PPI will mask the symptoms of Gerd and allow Barrett's to develop over years. I like others, have a upper endoscopy every two years and are on long term use of PPI's to keep things in line. When in doubt visit a GI doc to have a chronic situation evaluated and a diagnosis of GERD determined.