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Related Experiment Videos

Temocillin: lymph penetration and protein binding.

D H Staniforth1, H Clarke, B E Davies

  • 1Beecham Clinical Pharmacology Unit, West Middlesex University Hospital, Isleworth, UK.

International Journal of Clinical Pharmacology, Therapy, and Toxicology
|July 1, 1990
PubMed
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Temocillin, a novel betalactam antibiotic, shows good plasma protein binding. This study investigated its penetration into lymph tissue, crucial for understanding antibiotic distribution and efficacy.

Area of Science:

  • Pharmacology
  • Infectious Diseases
  • Drug Metabolism

Background:

  • Temocillin is a novel beta-lactam antibiotic.
  • Understanding drug distribution in body fluids is essential for optimizing therapeutic efficacy.

Purpose of the Study:

  • To determine plasma concentrations of free and protein-bound temocillin.
  • To calculate protein binding parameters of temocillin.
  • To assess temocillin penetration into lymph and discuss its clinical significance.

Main Methods:

  • Intravenous administration of temocillin (1, 2, and 4 g) to healthy subjects.
  • Assay of plasma concentrations for free and protein-bound temocillin.
  • Collection and assay of lymph samples for total temocillin.
  • Calculation of free temocillin concentrations in lymph using protein binding parameters.

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Main Results:

  • Temocillin exhibited measurable plasma concentrations, with both free and protein-bound forms quantified.
  • Lymph samples were successfully collected and analyzed for total temocillin levels.
  • Free temocillin concentrations in lymph were calculated based on plasma protein binding data.

Conclusions:

  • Temocillin demonstrates predictable pharmacokinetic behavior in plasma.
  • The study provides insights into temocillin's distribution into lymph, a key site for infection control.
  • Further discussion on the clinical implications of lymph penetration is warranted.