Management of Pregabalin Toxicity with Hemodialysis

Rationale for Hemodialysis in Pregabalin Toxicity

• Pregabalin has a low volume of distribution (0.5 L/kg), making it amenable to removal by hemodialysis, as recommended by the Critical Care society 1

Recommended Hemodialysis Protocol

• The Critical Care society strongly recommends intermittent hemodialysis as the preferred extracorporeal treatment modality for patients with pregabalin toxicity 1, 2
• Hemodialysis should be continued until clinical improvement is observed, with daily intermittent hemodialysis sessions potentially required until toxicity resolves 2, 3

Optimizing Hemodialysis Parameters

• The Critical Care society recommends using higher blood flow rates and dialyzers with larger surface area to enhance clearance, and optimizing dialysis parameters to reduce the risk of hemodynamic compromise 1, 2
• Using dialysate with appropriate electrolyte concentrations is important to minimize complications, as suggested by the Praxis Medical Insights society 4

Monitoring During and After Hemodialysis

• Clinical improvement should be the primary endpoint for assessing the effectiveness of hemodialysis, and serum drug concentration monitoring may be considered when available, as recommended by the Critical Care and Praxis Medical Insights societies 2, 4

When to Stop Hemodialysis

• The Critical Care society recommends basing cessation of hemodialysis on clinical improvement rather than predetermined duration, with key indicators for stopping including resolution of neurological symptoms and hemodynamic stability 2

Important Considerations

• Administering medications after hemodialysis sessions is crucial to avoid premature removal, as recommended by the Clinical Infectious Diseases and Praxis Medical Insights societies 4, 5
• Consulting with nephrology for appropriate dialysis prescription and monitoring is essential, as suggested by the Critical Care society 2