Ranitidine is a histamine-2 receptor antagonist, commonly used to reduce stomach acid production. It is prescribed to alleviate conditions such as gastroesophageal reflux disease (GERD), ulcers, and Zollinger-Ellison syndrome. By blocking histamine receptors in the stomach lining, ranitidine decreases acid secretion, providing relief from acid-related disorders. Often available over-the-counter, it comes in various formulations, including tablets and liquid forms. While historically popular for its efficacy, safety concerns arose, leading to withdrawal in some markets due to potential contamination. Despite this setback, ranitidine's mechanism of acid reduction remains influential in managing gastric issues, with alternative medications taking its place. |