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. 1983 Jul;24(1):18–22. doi: 10.1128/aac.24.1.18

Pharmacology of aztreonam after intravenous infusion.

B E Scully, E A Swabb, H C Neu
PMCID: PMC185098  PMID: 6684898

Abstract

The pharmacokinetics of aztreonam, a monocyclic beta-lactam which inhibits most members of the family Enterobacteriaceae at concentrations of less than 1 microgram/ml and most Pseudomonas aeruginosa isolates at concentrations of less than 16 micrograms/ml, were examined in healthy male volunteers after 30-min intravenous infusions of 0.5, 1, and 2 g of the drug. Mean peak levels of the drug in serum at the end of infusion were 65.5, 164, 255 micrograms/ml after 0.5 1, and 2 g, respectively, with levels of the drug in serum of 1.8, 3, and 8.5 micrograms/ml at 8.5 h for the three doses, respectively. The half-life was approximately 2 h for all three doses. The total serum clearance averaged 1 ml/min per kg. The apparent volume of distribution averaged 0.17 liter/kg for the three doses. Overall excretion of the drug in urine was 61%, with mean levels in urine of 23, 52, and 109 micrograms/ml at 8.5 to 12.5 h after 0.5, 1, and 2 g of aztreonam, respectively. Concentrations of the drug in serum after a 1-g dose exceeded the minimal inhibitory concentration for 90% of the members of the Enterobacteriaceae by four- to eightfold for 8 h and exceeded the minimal inhibitory concentration for P. aeruginosa isolates for 4 h.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Sykes R. B., Bonner D. P., Bush K., Georgopapadakou N. H. Azthreonam (SQ 26,776), a synthetic monobactam specifically active against aerobic gram-negative bacteria. Antimicrob Agents Chemother. 1982 Jan;21(1):85–92. doi: 10.1128/aac.21.1.85. [DOI] [PMC free article] [PubMed] [Google Scholar]

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