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- Title
Inhibition of the renal excretion of tazobactam by piperacillin.
- Authors
Komuro, Masahito; Maeda, Toshimatsu; Kakuo, Hiroyuki; Matsushita, Hitoshi; Shimada, Jingoro; Komuro, M; Maeda, T; Kakuo, H; Matsushita, H; Shimada, J
- Abstract
A 1:4 by weight of combination of tazobactam, a new beta-lactamase inhibitor, and piperacillin, is now under development in Japan. After bolus iv administration of the combination to beagle dogs, piperacillin both significantly raised the area under plasma concentration time curve (AUC0 approximately infinity) and significantly decreased the total body clearance (Cltot) of tazobactam. The percentage binding of tazobactam and piperacillin to dog and human serum protein was the same for the combination as for the individual compounds. Piperacillin significantly decreased the renal clearance (Clr) and the clearance ratio (Cr) of tazobactam in dogs. Further, probenecid significantly decreased Clr of both tazobactam and piperacillin, and the Cr of tazobactam and piperacillin approximately reached unity. These results indicate that piperacillin inhibits the renal excretion of tazobactam. Both tazobactam and piperacillin are secreted by a tubular anion transport system which is identical to the probenecid secretion system.
- Publication
Journal of Antimicrobial Chemotherapy (JAC), 1994, Vol 34, Issue 4, p555
- ISSN
0305-7453
- Publication type
journal article