Yes, it is a chemical reaction usually known as decomposition
Hydrochloric acids inside your stomach and other enzymes.
It works by neutralising the hydrochloric acid (HCl) from the stomach, because it is not normal to have a surplus of acid in your stomach. This is a chemical reaction of neutralization for the control of pH. The indigestion tablet has alkaline in them.
A gas is evolved as a product of a chemical reaction.
An indigestion remedy is required to neutralize the acidity present in the stomach and esophagus, to do this a reaction of a base such as Calcium carbonate (CaCO2) to the abundant acids in your stomach (HCl). The product of this reaction is CO2 and CaCl. The CO2 is then "burb"ed up and the CaCl will be harmlessly disolved into the body.
Calcium carbonate, a base, reacts with excess stomach acid (hydrochloric acid) in a simple neutralization reaction. The calcium carbonate neutralizes the acid by forming calcium chloride, carbon dioxide gas, and water. This reaction helps to alleviate symptoms of heartburn and indigestion.
Milk of magnesia, which contains magnesium hydroxide, reacts with stomach acid (hydrochloric acid) to form magnesium chloride and water. This reaction helps to neutralize excess stomach acid, providing relief from heartburn and indigestion.
Milk of magnesia, Mg(OH)2 is used to cure indigestion because it is basic and indigestion is acidic.
When indigestion tablets are mixed with water, they typically dissolve and release their active ingredients, such as antacids or simethicone, which help neutralize stomach acid or relieve gas. This reaction often produces bubbles or fizzing, particularly with effervescent tablets, as carbon dioxide is released. The resulting solution can then be consumed to provide relief from indigestion symptoms.
Caluim carbonate + Hydrochloric acid = Carcon dioxide + Calicum chloride + water
The acids in your stomach are a natural part of digestion, but if they reflux out of the stomach and into the esophagus, "indigestion" may occur. This process is just one cause of what is commonly called "indigestion."
Weak because the indigestion is the acid rising and hurting a sensative part of you stomach, so the indigestion tablet weakens the acid so that the acid isn't dissolving and causing pain to your stomach.
When milk of magnesia reacts with the acids in your stomach, a neutralization reaction occurs. In this process, the magnesium hydroxide in milk of magnesia (a base) reacts with hydrochloric acid (the main acid in stomach) to form magnesium chloride and water. This reaction helps to reduce acidity in the stomach, providing relief from indigestion and heartburn.