<p>Calcium Polystyrene Sulfonate is indicated in patients with hyperkalemia associated with anuria or severe oliguria. It reduces serum level of potassium and removes excess potassium from the body. Calcium Polystyrene Sulfonate is indicated in all states of hyperkalemia due to acute and chronic renal failure, abortion, complicated labor, incompatible blood transfusion, crush injury, prostectomy, severe burns, surgical shock, cases of severe glomerulonephritis and pyelonephritis. Calcium Polystyrene Sulfonate can also be useful in patients requiring dialysis and can also be used during the period of under dialysis to control blood potassium levels.</p>