环硅酸锆钠 (Lokelma)

概览

Sodium zirconium cyclosilicate is a potassium binder used to treat hyperkalemia.

作用机制

Hyperkalemia is a condition defined by elevated potassium levels in the blood, often caused by cardiovascular, renal, and metabolic diseases. Hyperkalemia occurs in 23 to 47% of patients with chronic kidney disease and/or chronic heart failure, and may lead to cardiac arrest and death. Sodium zirconium cyclosilicate is subsequently a non-absorbed, non-polymer inorganic powder with a uniform micropore structure that preferentially captures potassium in exchange for hydrogen and sodium cations. Sodium zirconium cyclosilicate is highly selective for potassium ions, even in the presence of other cations such as calcium and magnesium, in vitro. Sodium zirconium cyclosilicate captures potassium throughout the entire gastrointestinal (GI) tract and reduces the concentration of free potassium in the GI lumen, thereby lowering serum potassium levels and increasing fecal potassium excretion to resolve hyperkalemia.

适应症

Sodium zirconium cyclosilicate is a potassium binder indicated for the treatment of hyperkalemia in adult patients.

• Hyperkalemia