Antacids are medicines which help to neutralise the acid content of your stomach. They are most commonly used to provide quick relief of symptoms for intermittent bouts of mild indigestion or heartburn. Acid occurs naturally in your stomach. It is produced to help break down and digest the food you eat. Antacids neutralise the acid in your stomach for a short period, so they are best taken when the symptoms occur.
This is a companion discussion topic for the original article at https://patient.info/medicine/magnesium-trisilicate