title: Ampicillin concentrations in human radicular granuloma following a single oral dose of bacampicillin.
abstract: Ampicillin concentrations in human serum and radicular granulomas of 42 patients were determined after a single oral dose of bacampicillin (equivalent to 500 mg of ampicillin). Although wide variations were found among both serum and radicular granuloma ampicillin concentrations, measurable concentrations were found in all cases. The mean peak ampicillin concentrations in serum and radicular granulomas occurred at identical times, 1.5 hours, and were 11.19 micrograms/mL (range, 1.30 to 21.00 micrograms/mL) and 5.12 micrograms/g (range, 0.50 to 10.50 micrograms/g), respectively. The mean radicular granuloma/serum ampicillin concentration ratio at the peak time was 0.42. Ampicillin concentrations in radicular granulomas exceeded most of the minimum inhibitory concentrations for bacteria commonly isolated from odontogenic infections.
authors.affiliation: Department of Oral Surgery 2, Nihon University School of Dentistry, Matsudo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Akimoto
authors.forename: K
authors.initials: K
authors.lastname: Kaneko
authors.forename: A
authors.initials: A
authors.lastname: Fujii
authors.forename: H
authors.initials: H
authors.lastname: Yamamoto
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000667:Ampicillin / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000032:analysis / Q000097:blood / Q000493:pharmacokinetics / Q000494:pharmacology*; D001682:Biological Availability; D005260:Female; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D010484:Periapical Granuloma / Q000188:drug therapy* / Q000382:microbiology; D013290:Streptococcal Infections / Q000188:drug therapy*; D013291:Streptococcus / Q000187:drug effects
chemical_list: D000667:Ampicillin; C011674:bacampicillin