Overview: Magnesium antacids are taken to help relieve indigestion, heartburn, or a sour stomach. You may notice that your poop may be loose, watery, or more frequent when taking a magnesium antacid.

Do you often take an antacid after eating a heavy, oily meal? While they can provide quick relief, overusing antacids may lead to several side effects. Antacids are commonly available over-the-counter ...