Ceftriaxone Dosing in End-Stage Renal Disease (ESRD)
No dosage adjustment is required for ceftriaxone in patients with ESRD, and the standard dose of 1-2 grams daily can be maintained. 1
Pharmacokinetics of Ceftriaxone in ESRD
Ceftriaxone has unique pharmacokinetic properties that differentiate it from many other antibiotics when considering dosing in renal impairment:
- Ceftriaxone is excreted via both biliary (40-65%) and renal (33-67%) routes 1
- Despite ESRD, ceftriaxone maintains adequate therapeutic levels due to its dual elimination pathway
- The FDA label specifically states: "Patients with renal failure normally require no adjustment in dosage when usual doses of ceftriaxone are administered" 1
Evidence Supporting Standard Dosing in ESRD
Research studies confirm the appropriateness of standard dosing in ESRD:
- In patients with ESRD, the half-life of ceftriaxone is moderately increased to approximately 15.6-16.6 hours (compared to 8 hours in normal renal function) 2, 3
- Despite this prolongation, plasma concentrations remain well above the minimum inhibitory concentration (MIC) for most susceptible organisms 4
- A study of 104 ESRD patients demonstrated efficacy and safety using 1 gram of ceftriaxone daily without dose adjustment 4
Hemodialysis Considerations
- Ceftriaxone is partially removed during hemodialysis, with approximately 41% reduction in plasma levels during a 4-hour session 2
- However, even after hemodialysis, plasma concentrations remain within therapeutic range 2
- No supplemental dosing is required after hemodialysis 1
Dosing Recommendations
For adult patients with ESRD:
- Standard dose: 1-2 grams IV once daily (or divided twice daily) 1
- Maximum daily dose: 4 grams 1
- Duration: Generally 4-14 days depending on infection type and severity 1
- For surgical prophylaxis: Single 1 gram dose 30-120 minutes before procedure 1
Special Considerations
Hepatic Impairment
- In patients with both severe renal and hepatic dysfunction, close clinical monitoring is advised, and the ceftriaxone dosage should not exceed 2 grams daily 1
Administration
- Administer intravenously by infusion over 30 minutes 1
- For intramuscular administration, inject well within the body of a relatively large muscle 1
Potential Adverse Effects to Monitor
- Urolithiasis: Ceftriaxone-calcium precipitates can form in the urinary tract; ensure adequate hydration 1
- Gallbladder pseudolithiasis: Monitor for signs of gallbladder disease 1
- Prothrombin time alterations: Monitor in patients with impaired vitamin K synthesis or low vitamin K stores 1
Conclusion
Unlike many other antibiotics, ceftriaxone does not require dose adjustment in ESRD due to its dual elimination pathway. The standard dosing regimen of 1-2 grams daily provides adequate therapeutic levels while maintaining an acceptable safety profile in this population.