title: [A study on the concentrations of levofloxacin in the gallbladder tissue and bile of patients].
abstract: Concentrations of levofloxacin (LVFX, DR-3355), optically active (-)-ofloxacin, in the gall-bladder tissue and bile were determined in patients, and the results were as follows: 1. A single dose of LVFX (100 mg) was administered orally to 6 patients with cholelithiasis about 2 to 3 hours before operation. The range in the gallbladder tissues was 0.34 to 1.59 micrograms/g, while the range in sera was 0.20 to 1.05 micrograms/ml. The ranges in the adipose tissues, gallbladder bile, and common duct bile were 0.07 to 0.26 micrograms/g, 1.8 to 12.2 micrograms/ml, and 1.4 to 5.8 micrograms/ml, respectively. 2. A single dose of LVFX (100 mg) was administered orally to 5 patients with indwelling T-tube. Concentrations of LVFX in excreted bile samples were 1.2 to 2.4 micrograms/ml, 1.3 to 3.5 micrograms/ml, and 1.3 to 2.4 micrograms/ml at 2 to 4, 4 to 6, and 6 to 12 hours after administration, respectively. Therefore, it appears that LVFX may be effective in biliary tract infections, because of its sustained high concentrations in biliary system.
authors.affiliation: Department of Surgery, Kawasaki Municipal Hospital.
authors.forename: H
authors.initials: H
authors.lastname: Hukagawa
authors.forename: K
authors.initials: K
authors.lastname: Noga
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism; D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001646:Bile / Q000378:metabolism*; D002769:Cholelithiasis / Q000188:drug therapy / Q000378:metabolism*; D005260:Female; D005704:Gallbladder / Q000378:metabolism*; D006801:Humans; D064704:Levofloxacin; D008297:Male; D008875:Middle Aged; D015242:Ofloxacin / Q000008:administration & dosage / Q000097:blood / Q000493:pharmacokinetics*
chemical_list: D064704:Levofloxacin; D015242:Ofloxacin