Maalox and Mylanta are two common over-the-counter (OTC) medications known as antacids. They treat gastrointestinal (GI) symptoms such as heartburn, acid indigestion, and upset stomach.

Proton pump inhibitors (PPIs) are a class of very effective and generally safe medicines used to treat heartburn, gastroesophageal reflux disease (GERD), and gastric ulcers.But not everyone who ...