The effect of hemodialysis and hemoperfusion on serum valproic acid concentration.

Kandrotas, R J; Love, J M; Gal, P; Oles, K S · Neurology · 1990

case_report · Level V

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Abstract

We report a patient with dialysis-induced encephalopathy who was taking divalproex sodium for a seizure disorder. Her serum valproic acid concentration appeared to be in the low therapeutic range at 54 mg/l yet she continued to have seizure activity. The elimination half-life and apparent clearance of valproic acid were the same for both a dialysis and nondialysis day, indicating that hemodialysis/hemoperfusion has little effect on the overall removal of valproic acid from the body.

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