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  • Title: Pharmacokinetics of cefdinir and its transfer to dialysate in patients with chronic renal failure undergoing continuous ambulatory peritoneal dialysis.
    Author: Tomino Y, Fukui M, Hamada C, Inoue S, Osada S.
    Journal: Arzneimittelforschung; 1998 Aug; 48(8):862-7. PubMed ID: 9748717.
    Abstract:
    Cefdinir (CAS 91832-40-5) was administered orally as a 100-mg capsule (Cefzon) to a total of 12 patients with chronic renal failure undergoing continuous ambulatory peritoneal dialysis (CAPD) to investigate changes in the serum concentrations, excretion rate into the dialysate and serum-protein binding of cefdinir. Cmax values were 1.64-4.34 micrograms/ml, t1/2 values were 10.8-21.9 h., and AUC values were 31.1-73.1 micrograms.h/ml (0-30 h) in four patients given a single oral dose of 100 mg of cefdinir as a capsule. About 1 microgram/ml of cefdinir had still remained in the blood of all the patients 24 h after administration. The serum concentrations of cefdinir were dose-dependent in four patients of each group who were given an oral daily dose of 100 mg for 3 to 8 days and 200 mg (2 capsules) for 4 to 14 consecutive days. No marked change in laboratory test values or clinical symptoms before and after administration were observed in these dose regimes. Protein levels of 5.17-5.71 g/day were eliminated from the peritoneal dialysate and urine. Cefdinir inhibited 90 to 100% of the clinical isolates such as Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli and other enteric bacteria causing catheter infection and peritonitis, and its antibacterial activity was stronger than that of amoxicillin (CAS 26787-78-0) or cefaclor (CAS 53944-73-3) against these clinical isolates.
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