Overview Ranitidine was a popular medication used to treat conditions related to excess stomach acid. It belonged to the H2 receptor antagonist class and was commonly prescribed for acid reflux, ulcers, and gastroesophageal reflux disease (GERD). However, its availability changed after concerns arose regarding its safety. What is Ranitidine? Ranitidine was a medication used to reduce stomach acid production. It was available in prescription and over-the-counter (OTC) forms and was widely used for treating acid-related conditions. It worked by blocking histamine receptors in the stomach lining, thereby reducing acid secretion. How It Works? Ranitidine functioned as an H2 receptor antagonist.…