Sucralfate 1gm is a medication primarily used to treat and prevent ulcers in the stomach and intestines. It works by forming a protective layer over the ulcer or injured area, which helps shield it from stomach acid and promotes healing. Sucralfate does not neutralize stomach acid but instead acts as a local protectant, allowing the ulcerated tissue to heal more effectively. It is often prescribed for conditions such as peptic ulcers, gastroesophageal reflux disease (GERD), and stress ulcers. Sucralfate should be taken as directed, typically on an empty stomach, to ensure maximum effectiveness, and it may cause mild side effects like constipation or stomach discomfort.