Both of these medicines make the cells in the stomach stop making acid. There is a problem in unnaturally stopping the production of acid, because acid is vital to ensure proper digestion of foods. When a patient stops taking antacids, the stomach naturally starts producing acid again and usually more than normal because the antacids had unnaturally stopped this process. The result is that there is now too much acid, the whole problem starts again. It is considered better and safer to control acid levels by consuming water and by eliminating foods that may cause excessive acid. 