[Pharmacokinetics of ampicillin in patients with chronic renal insufficiency during hemodialysis and hemosorption].

It was shown that when the filtration capacity of the kidneys was lowered even insignificantly (the creatinine clearance 50-80 ml/min), the maximum blood levels of ampicillin increased 2 times and its retention time was prolonged. At the terminal stage of chronic renal insufficiency the half-life of the drug and the area under the pharmacokinetic curve markedly increased and the plasma clearance decreased. Hemodialysis and hemosorption significantly lowered the ampicillin half-life. The ampicillin coefficient in hemosorption was 2 times higher than that in hemodialysis.