Lokelma, also known by its generic name sodium zirconium cyclosilicate, functions as a potassium binder [1]. It works by reversibly binding to potassium ions in the gastrointestinal tract [1].
How does Lokelma remove potassium from the body?
Lokelma's mechanism involves ion exchange within the digestive system [1]. The active component, zirconium silicate, has a crystal structure that allows it to bind potassium ions, replacing them with sodium ions [1]. This binding is selective for potassium, even at low concentrations [1]. The drug is not absorbed systemically; it remains in the gastrointestinal tract and is then excreted in the feces [1]. This process effectively traps excess potassium in the gut, preventing its reabsorption into the bloodstream and facilitating its removal from the body [1].
What is Lokelma used to treat?
Lokelma is prescribed to treat hyperkalemia, a condition characterized by dangerously high levels of potassium in the blood [1]. It is used in adults to reduce serum potassium levels and maintain them within a normal range [1].
How long does it take for Lokelma to lower potassium levels?
Lokelma can begin lowering potassium levels within one hour of administration [1]. Clinical studies have shown significant reductions in serum potassium levels as early as the first dose and sustained effects over time [1].
What are the potential side effects of Lokelma?
The most common side effect reported with Lokelma is hypokalemia, which is a low level of potassium in the blood [1]. Other potential side effects can include constipation, nausea, abdominal discomfort, and diarrhea [1].
Can Lokelma be used with other medications?
Lokelma is designed to have minimal drug-drug interactions because it is not absorbed into the bloodstream [1]. This means it is unlikely to interfere with the absorption or efficacy of other oral medications [1].
When does Lokelma's patent expire?
Information on specific patent expiry dates for Lokelma is available through specialized patent tracking resources [2].
Who manufactures Lokelma?
Lokelma is manufactured by AstraZeneca [1].
How does Lokelma compare to other potassium binders?
Lokelma offers a distinct mechanism of action and pharmacokinetic profile compared to older potassium binders like patiromer (Veltassa) or the older resin-based binders [1]. Its ion-exchange process is rapid and selective for potassium [1]. The non-absorbed nature of Lokelma also contributes to its low potential for drug interactions [1].
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Sources:
[1] https://www.lokelma.com/
[2] https://drugpatentwatch.com/