title: Plasma, cantharides blister fluid, and suction blister fluid levels of ceftizoxime after single intramuscular application for gonorrhea.
abstract: Following a single intramuscular application of 1 g ceftizoxime, levels of the drug were determined in plasma as well as in suction blister fluid (SBF) and cantharides blister fluid (CBF). This regimen invariably led to both high and long-lasting plasma levels: 81 +/- 16 min post dose maximum plasma levels of 17.5 +/- 3.1 micrograms/ml were reached; 6 h post dose levels of 4.6 +/- 0.4 micrograms/ml were still found, i.e., 4375 and 1150 times, respectively, the MIC90% of Neisseria gonorrhoeae. The high plasma levels were parallelled by high concentrations in SBF, with peaks amounting to 8.4 +/- 1.0 micrograms/ml. Peak concentrations in CBF ranged from 8.1 to 15.7 micrograms/ml. Thus, the pharmacokinetic behavior of ceftizoxime given as a single intramuscular injection of 1 g explained the excellent clinical results of this regimen in uncomplicated gonorrhea.
mesh_terms: D000328:Adult; D001768:Blister / Q000378:metabolism*; D002193:Cantharidin / Q000032:analysis; D002439:Cefotaxime / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000032:analysis / Q000097:blood / Q000494:pharmacology / Q000627:therapeutic use; D015296:Ceftizoxime; D004305:Dose-Response Relationship, Drug; D005260:Female; D006069:Gonorrhea / Q000188:drug therapy*; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D013997:Time Factors
chemical_list: D015296:Ceftizoxime; D002193:Cantharidin; D002439:Cefotaxime