Antepsin, known generically as sucralfate, is a medication primarily used in the treatment and prevention of ulcers in the stomach and intestines. It works by creating a protective coating over the ulcer, which shields it from stomach acid and allows it to heal more effectively. Antepsin does not significantly alter the acidity of the stomach but acts locally by adhering to the ulcer site, thus protecting it from further damage caused by acid and digestive enzymes. This medication is often prescribed for individuals suffering from peptic ulcer disease, gastritis, or after endoscopic procedures to promote healing of the gastrointestinal lining. It may also be used in the management of gastroesophageal reflux disease (GERD) symptoms. Antepsin is available in various forms, including tablets and suspensions, and its use should be under the guidance of a healthcare professional to ensure proper administration and effectiveness.