Kidney disease can cause phosphate to accumulate. Uncontrolled high phosphate levels may lead to weakening of the bones and may also increase the risk of a heart attack and stroke.
Aluminium hydroxide helps to reduce too much phosphate accumulating in your body. It works by reducing the amount of phosphate your body absorbs from the food you eat. Aluminium hydroxide combines with phosphate in your stomach and this is then removed in your poo (faeces) instead of being absorbed.
Note: Aluminium hydroxide is also found in a variety of antacids. The information on this page is about aluminium as a phosphate binder for people with kidney disease. For information about antacids, see Antacids.