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sodium polystyrene sulfonate (Kalexate, Kayexalate, Kionex, SP)

👤by AP 0 comments 🕔Monday, December 15th, 2014

DRUG CLASS AND MECHANISM: Sodium polystyrene sulfonate is a cation-exchange resin taken orally that is used to reduce high levels of potassium in the blood (hyperkalemia). Sodium polystyrene sulfonate removes potassium by exchanging sodium ions for potassium ions in the intestine. The majority of this cation exchange seems to take place in the large intestine where potassium ions are excreted in greater amounts.

In-vitro studies have shown that each gram of resin removes roughly 3 mEq of potassium. However, actual removal of potassium in patients is closer to 1 mEq per gram of medication. Sodium polystyrene sulfonate starts working over a period of several hours and therefore should not be used to treat life-threatening episodes of acute hyperkalemia.

Sodium polystyrene sulfonate was initially approved by the US FDA in 1958.

PRESCRIBED FOR: Sodium polystyrene sulfonate is used for treating high potassium levels in the blood (hyperkalemia).

SIDE EFFECTS: The most common side effects associated with sodium polystyrene sulfonate treatment are gastrointestinal (affecting the stomach and intestines).

Other side effects include:

anorexia, nausea, vomiting, hypokalemia (low levels of potassium levels in the blood), hypomagnesemia, hypocalcemia (low levels of calcium levels in the blood), heart rhythm abnormalities, and constipation.

Medically Reviewed by a Doctor on 12/15/2014

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Pharmacy Author:

Omudhome Ogbru, PharmD

Omudhome Ogbru, PharmD

Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

Medical and Pharmacy Editor:

Jay W. Marks, MD

Jay W. Marks, MD

Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

Article Credits / Source

AP / MedicineNet.com

AP wrote this story for MedicineNet.com. MedicineNet.com provides up to the minute breaking health news. Click here to view this full article from MedicineNet.com.

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