What does polystyrene powder do? POLYSTYRENE (Kayexalate(R)) treats a condition called hyperkalemia, in which there is too much potassium in the body (blood). Polystyrene is an ion-exchange resin that loses sodium ions, that are replaced by potassium ions. Polystyrene powder can be made into an oral suspension (to be taken by mouth) or into an enema (for rectal use). Generic polystyrene powder is available.
Side effects that you should report to your prescriber or health care professional as soon as possible:
Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome):
NOTE: This information is not intended to cover all possible uses, precautions, interactions, or adverse effects for this drug. If you have questions about the drug(s) you are taking, check with your health care professional.