[Plasma and tissue concentration of ceftriaxone following a one-time i.v. dose of 2 g].

The concentration of ceftriaxon found in plasma and in fatty, muscular and colonic tissue after a single intravenous dose of 2 g are reported. 20 patients undergoing elective surgery of the colon were divided into five groups of 4, and ceftriaxon was given 45 min, 3, 6, 12 and 24 h before surgery. Even after 24 h the plasma and tissue concentrations were above MIC 90 for most microorganisms sensitive to ceftriaxon.