title: Dose-dependent bioavailability of amoxycillin.
abstract: Amoxycillin bioavailability at four different dose levels was studied. Healthy volunteers participated in the experiments. They received in separate occasions a single 250 mg, 500 mg, 750 mg and 1 g doses of the antibiotic. Amoxycillin was assayed in the urine by microbiological method. The mean urinary recovery of amoxycillin was 59.6%, 55.9%, 58.5% and 45.8% of the given dose for the 250 mg, 500 mg, 750 mg and 1 g dose, respectively. Relative amoxycillin bioavailability was determined comparing the total amount of antibiotic excreted unchanged at 24 h of each dose to the 250-mg dose.
authors.affiliation: Department of Pharmaceutical Sciences and Technology, University of Chile, Santiago.
authors.forename: A
authors.initials: A
authors.lastname: Arancibia
authors.forename: A
authors.initials: A
authors.lastname: Icarte
authors.forename: C
authors.initials: C
authors.lastname: González
authors.forename: I
authors.initials: I
authors.lastname: Morasso
mesh_terms: D000328:Adult; D000658:Amoxicillin / Q000493:pharmacokinetics*; D001682:Biological Availability; D005260:Female; D006801:Humans; D008297:Male; D013997:Time Factors
chemical_list: D000658:Amoxicillin