Lokelma is the brand name of sodium zirconium cyclosilicate. It binds to potassium in the gastrointestinal tract inhibiting its absorption.
Lokelma (Sodium Zirconium cyclosilicate) Uses:
It is used to treat adult patients with hyperkalemia.
Caution: It should not be used in emergency settings for life-threatening hyperkalemia because of its delayed onset of action.
Patiromer (Valtessa) is another novel drug used to treat hyperkalemia.
Lokelma (Sodium Zirconium Cyclosilicate) Dose in Adults
- 10 gms orally thrice daily for up to 48 hours.
- The dose is then adjusted by 5 gms daily at an interval of one week if needed based on the serum potassium levels.
- The maintenance dose is 10 gms once a day ranging from 5 gms on alternate days to 15 gms once a day to a maximum maintenance dose of 15 gms/day.
Lokelma (Sodium Zirconium Cyclosilicate) Use in Children:
Dosage in children is not established.
Lokelma pregnancy risk category: B
- Since sodium zirconium cyclosilicate is not absorbed, therefore, adverse fetal outcomes are not expected to occur as exposure to the fetus would not occur.
Sodium zirconium cyclosilicate use during breastfeeding:
- Sodium zirconium cyclosilicate is not systemically absorbed, therefore, distribution into breast milk would not be expected.
Sodium Zirconium Cyclosilicate Dose in Kidney Disease:
The manufacturer has not recommended any adjustment in the dose in patients with Kidney disease.
Sodium Zirconium Cyclosilicate Dose in Liver Disease:
The manufacturer has not recommended any adjustment in the dose in patients with liver disease.
Common Side Effects of Lokelma (Sodium zirconium cyclosilicate):
-
Cardiovascular:
- Edema
Less Common Side Effects of Sodium zirconium cyclosilicate:
-
Endocrine & metabolic:
- Hypokalemia
Contraindications to Lokelma (Sodium zirconium cyclosilicate):
The manufacturer has not listed any contraindications to the use of sodium zirconium cyclosilicate.
Warnings and Precautions
-
Edema:
- Mild to moderate leg swelling may develop especially in patients who are treated with higher doses of the drug.
- The patient should be monitored for leg swelling particularly those who are prone to fluid overload such as patients with heart failure and kidney disease.
-
GI motility disorders:
- Lokelma may be ineffective and worsen the following underlying gastrointestinal problems:
- severe constipation
- bowel obstruction or impaction, including post-operative abnormal bowel motility disorders.
- Lokelma may be ineffective and worsen the following underlying gastrointestinal problems:
Sodium zirconium cyclosilicate: Drug Interaction
Risk Factor D (Consider therapy modification) |
|
Clopidogrel |
Sodium Zirconium Cyclosilicate may decrease serum concentrations of the active metabolite(s) of Clopidogrel. Management: Separate the administration of sodium zirconium cyclosilicate and clopidogrel by at least 2 hours. |
Dabigatran Etexilate |
Sodium Zirconium Cyclosilicate may decrease the serum concentration of Dabigatran Etexilate. Management: Separate the administration of sodium zirconium cyclosilicate and dabigatran by at least 2 hours. |
Warfarin |
Sodium Zirconium Cyclosilicate may increase the serum concentration of Warfarin. Management: Separate the administration of sodium zirconium cyclosilicate and warfarin by at least 2 hours. If simultaneous administration is required, monitor for signs and symptoms of warfarin toxicity (eg, elevated INR, bleeding). |
Monitor:
- Serum potassium
- leg swelling
How to administer Lokelma (Sodium zirconium cyclosilicate)?
- It is administered orally. The contents of the packet are emptied into a glass of water (minimum 45 ml or ≥3 tablespoons of water.
- Stir the contents well and drink immediately. If any powder remains in the glass, add more water, stir, and drink immediately.
- Repeat until no powder remains. Other oral medications should be administered at least 2 hours before or 2 hours after the dose.
- It can also be administered via an NG tube. Mix the contents of the packet in a glass of water and administer via a nasogastric tube.
Mechanism of action (MOA) of Lokelma (Sodium zirconium cyclosilicate):
- Sodium zirconium cyclosilicate is a potassium binder.
- It preferentially exchanges potassium for sodium and hydrogen ions.
- The binding of Sodium zirconium cyclosilicate to potassium reduces its concentration in the gastrointestinal lumen thus lowering the serum potassium levels.
The onset of action: 1 hour
Absorption: It is not systemically absorbed
Metabolism: None
Excretion: Feces
International Brands of Sodium zirconium cyclosilicate:
- Lokelma
Sodium Zirconium Cyclosilicate Brands in Pakistan:
Sodium Zirconium cyclosilicate is not available in Pakistan.