Pharmacodynamic data on fosfomycin in underweight infants during the neonatal period

Chemotherapy. 1977;23 Suppl 1:217-22. doi: 10.1159/000222051.


A study was made of the blood levels, half-life and elimination of fosfomycin in two groups of underweight infants during the 1st to 3rd days of life and after 3-4 weeks. The test dose was 50 mg/kg i.v., administered in a single dose. The times at which the blood was controlled were 5 min, 1, 3, 6, 9 and 24 h; and 0-24 h for the urine. All samples were evaluated by the microbiological method of diffusion in plate. The results obtained indicate that the elimination of fosfomycin after 24 h is slower and occurs in smaller quantities in the group of infants 1-3 days old than in the group of 3- to 4-week-old infants, the half-life of the antibiotic being 7 and 4.9 h, respectively.

MeSH terms

  • Age Factors
  • Anti-Bacterial Agents / metabolism*
  • Fosfomycin / administration & dosage
  • Fosfomycin / blood
  • Fosfomycin / metabolism*
  • Half-Life
  • Humans
  • Infant, Low Birth Weight*
  • Infant, Newborn
  • Injections, Intravenous
  • Male
  • Time Factors


  • Anti-Bacterial Agents
  • Fosfomycin