Simethicone is used as an antiflatulent to relieve symptoms commonly referred to gas including upper GI bloating, pressure, fullness or stuffed feeling. The clinical use of Simeticone is based on its antifoaming properties. Its antifoaming action relieves flatulence by dispersing and preventing the formation of mucous surrounded gas pockets in the GI tract. Simeticone acts in the stomach and intestines to change the surface tension of gas bubbles, enabling them to coalesce; thus gas is freed and eliminated more easily by belching or passing flatus. Simeticone aids in the elimination of gas from the GI tract and can be used to reduce postoperative gas pains. Simeticone can also be used prior to gastroscopy to enhance visualization and prior to radiography of the intestine to reduce gas shadows.