According to Dr. Jacob Teitelbaum, taking antacids can backfire on you. If you're taking an antacid because you've got acid reflux or indigestion, you may actually be making it more difficult for your stomach to break down and digest your food. You can even end up suffering from malnutrition.
"Secondly, in your body's attempt to make stomach acid (when you take anti-acid meds), it makes huge amounts of a hormone called Gastrin that stimulates stomach acid. Because of this, as soon as you stop your antacids, the stomach makes massive amounts of acid-- which it cannot protect against. In essence, you become addicted to the antacids. It is no surprise that Prilosec, Nexium, Zantac and other antacids are some of the biggest money making pharmaceuticals!" says Dr. Teitelbaum.
Dr. Teitelbaum provides a list of suggestions to relieve acid reflux and indigestion by adding a few things and taking a few things out of your daily routine.
http://www.endfatigue.com/tools-support/Eliminating-Chronic-Acid-Reflux-And-Indigestion.html