Antacids are used to relieve the symptoms of Gastroesogeal Reflux Disease (GERD also called acid reflux), heartburn or indigestion (also called dyspepsia). By neutralizing stomach acid, antacids relieve symptoms such as burning in the chest or throat area caused by acid reflux, a bitter taste in the mouth, a persistent dry cough, pain when lying down, and regurgitation.
Some antacids are also used for completely unrelated medical conditions, for example: