Prismasol 4 mmol/l Potassium is used in the treatment of renal failure, as substitution solution in haemofiltration and haemodiafiltration and as dialysis solution in continuous haemodialysis or continuous haemodiafiltration. Prismasol 4 mmol/l Potassium solution may also be used in case of drug poisoning with dialysable or filterable substances. Prismasol 4 mmol/l Potassium solution is indicated in patients who are normokalaemic.