title: Crossover study of the pharmacokinetics of ceftriaxone administered intravenously or intramuscularly to healthy volunteers.
abstract: The pharmacokinetics of ceftriaxone were investigated in six healthy adults. One-gram doses were administered either intramuscularly or intravenously in a crossover design study. Mean peak ceftriaxone concentrations in plasma of 79.2 and 123.2 micrograms/ml were achieved with intramuscular injection and intravenous infusion, respectively, with plasma half-lives of 5.4 and 5.8 h. The urinary recovery of ceftriaxone in the first 24 h was 37% after intravenous infusion and 25% after intramuscular injection.
mesh_terms: D000328:Adult; D002439:Cefotaxime / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000378:metabolism; D002443:Ceftriaxone; D005260:Female; D006207:Half-Life; D006801:Humans; D007263:Infusions, Parenteral; D007273:Injections, Intramuscular; D007700:Kinetics; D008297:Male; D008875:Middle Aged
chemical_list: D002443:Ceftriaxone; D002439:Cefotaxime