<unk> s are medications that bind<unk>  ions in the gastrointestinal tract, thereby preventing its intestinal absorption. They consist of polystyrene sulfonate resins attached to a cation and are administered either orally or by retention enema to patients who are at risk of developing hyperkalaemia (abnormal high serum<unk>  levels). Increased serum<unk>  levels are a condition likely to occur in patients suffering from chronic kidney disease in advanced stages.
Potassium binder
Phosphate binder
Mercurial diuretic
Salt substitute
Diuretic
Antidiuretic
Caloric restriction mimetic
Calcium channel blocker