Magnesium Hydroxide is popularly known as Milk of Magnesia. It is a mildly acting antacid and laxative. It is poorly and slowly absorbed and acts by its osmotic properties in the luminal fluid which causes retention of fluid in the bowel. It is useful for emptying the bowel prior to surgical, radiological and colonoscopic procedures and can help to eliminate parasites following appropriate therapy and toxic material in some cases of poisoning. Magnesium Hydroxide is converted into Magnesium Chloride in the stomach without forming carbon dioxide