What is the recommended inpatient dosing of Lokelma (sodium zirconium cyclosilicate) in milligrams (mg) for hyperkalemia, and is it administered once daily (q24)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: January 1, 2026View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

Lokelma Inpatient Dosing for Hyperkalemia

For inpatient treatment of hyperkalemia, administer Lokelma 10 g three times daily (q8h) for up to 48 hours, not once daily (q24h). 1

Initial Treatment Phase (First 48 Hours)

  • The FDA-approved initial dosing is 10 g administered three times daily for up to 48 hours to rapidly reduce serum potassium levels 1
  • This regimen achieves normokalaemia (3.5-5.0 mEq/L) in 84% of patients within 24 hours and 98% within 48 hours 2
  • Mean serum potassium reduction is approximately 1.1-1.28 mEq/L from baseline (typically from 5.6 mEq/L to 4.5 mEq/L) after 48 hours 3, 2
  • Onset of action begins within 1 hour, with median time to normalization of 2.2 hours 3, 2

Transition to Maintenance Dosing

  • After the initial 48-hour correction phase, transition to 10 g once daily (q24h) for maintenance therapy 1
  • The maintenance dose range is 5 g every other day to 15 g daily, adjusted based on serum potassium monitoring 1
  • Monitor serum potassium and adjust the dose at intervals of 1 week or longer, in increments of 5 g 1

Critical Dosing Distinctions

  • Do not use once-daily dosing during the acute correction phase - the three-times-daily regimen is essential for rapid potassium reduction in the inpatient setting 1, 2
  • Once-daily dosing (q24h) is reserved for maintenance therapy after normokalaemia is achieved 1
  • In clinical trials, 90% of patients maintained normokalaemia on 10 g daily maintenance dosing over 28 days 3

Special Population: Hemodialysis Patients

  • For patients on chronic hemodialysis, administer Lokelma only on non-dialysis days 1
  • Starting dose is 5 g once daily on non-dialysis days, or 10 g once daily if serum potassium exceeds 6.5 mEq/L 1
  • Maintenance dose range is 5-15 g once daily on non-dialysis days 1

Administration Instructions

  • Empty entire packet contents into approximately 3 tablespoons of water 1
  • Stir well and drink immediately; repeat if powder remains to ensure complete dose administration 1
  • Administer other oral medications at least 2 hours before or 2 hours after Lokelma to avoid binding interactions 1

Monitoring and Safety

  • Monitor serum potassium levels during treatment and adjust dose if levels fall below desired target range 1
  • Each 5 g dose contains approximately 400 mg of sodium; monitor for edema, particularly in patients requiring sodium restriction or prone to fluid overload 1
  • Edema occurs in approximately 6% of patients on 10 g daily and 14% on 15 g daily 3
  • Hypokalemia developed in 10-11% of patients receiving 10-15 g daily maintenance doses in clinical trials 2

Important Limitation

  • Lokelma should not be used as emergency treatment for life-threatening hyperkalemia due to its delayed onset of action 1
  • For acute, severe hyperkalemia with ECG changes, use rapid-acting treatments first (IV calcium, insulin/glucose, albuterol) before initiating Lokelma 3

Contraindications and Precautions

  • Avoid use in patients with severe constipation, bowel obstruction, or impaction, as Lokelma has not been studied in these conditions 1
  • No absolute contraindications exist, but caution is warranted in patients with abnormal post-operative bowel motility disorders 1

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.