title: Correlation between plasma and tonsillar levels of cefroxadine.
abstract: Serum and tonsillary tissue levels of cefroxadine, a new broad-spectrum cephalosporin, proving to be effective in several infections, particularly in the ENT ones, were measured in patients scheduled for tonsillectomy. Twenty patients (12 males, 8 females) aged between 11 and 25 years (mean 18.0 years) were given cefroxadine for 2 days (500 mg every 12 h), and on the 3rd day 500 mg of the drug was given before surgical operation. Tonsillar tissues were taken 2 h after dosing and blood samples before, 1, 2, 4 and 6 h after the drug administration in 8 out of 20 enrolled patients. Cefroxadine concentrations were measured according to microbiological methods. Cefroxadine tonsillary levels were 1.13 +/- 1.73 micrograms/g, approaching the MIC for sensitive bacteria. The time course of plasma levels is superimposable to previous studies. These findings suggest a rapid penetration of cefroxadine in tonsillar tissue and seem to confirm the clinical efficacy of the drug in ENT infections.
authors.affiliation: Department of Pharmacology, University of Milan, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Fraschini
authors.forename: F
authors.initials: F
authors.lastname: Scaglione
authors.forename: F
authors.initials: F
authors.lastname: Vago
authors.forename: E
authors.initials: E
authors.lastname: Bichisao
authors.forename: C
authors.initials: C
authors.lastname: Borghi
authors.forename: M
authors.initials: M
authors.lastname: Montanari
mesh_terms: D000293:Adolescent; D000328:Adult; D002511:Cephalosporins / Q000493:pharmacokinetics*; D002515:Cephradine / Q000031:analogs & derivatives / Q000097:blood / Q000493:pharmacokinetics*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D014066:Palatine Tonsil / Q000378:metabolism*; D011292:Premedication; D014069:Tonsillitis / Q000188:drug therapy / Q000601:surgery
chemical_list: D002511:Cephalosporins; C012671:cefroxadine; D002515:Cephradine