Khadam MW, Ashraf MM, Naz U, Bukhari NI, Tahir IM, Asghar D. Disposition kinetics, renal clearance and urinary excretion of cefixime in adolescent Pakistani boys - DRUG ANALYSIS REPORT.
J PAK MED ASSOC 2019;
69:367-372. [PMID:
30890829]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE
To investigate the role of environmental variation, genetic differences and age on disposition kinetics, renal clearance and urinary excretion of oral cefixime 400mg in healthy boys.
METHODS
The cross-sectional study was conducted at the University of Agriculture, Faisalabad, Pakistan, from August 2014 to July 2015, and comprised healthy boys aged 12-17 years after oral administration of cefixime capsule 400mg. Serum and urine samples were collected before and after drug administration and were stored at - 20oC until evaluation of cefixime concentration in each sample by high performance liquid chromatography. Drug concentration versus time data was used for pharmacokinetic calculations using one compartment model. Data obtained for urinary excretion and renal clearance of cefixime was analysed using regression-correlation analysis.
RESULTS
There were eight boys in the study. Mean values for elimination half-life, volume of distribution and total body clearance were 2.4}0.2 hours, 0.9}0.0L/kg and 0.3}0.0L/h/kg, respectively. The ratio of renal clearance of cefixime (0.7 ml/min/kg) to that of endogenous creatinine (0.8ml/min/kg) was 0.9. Cumulative mean percentage of cefixime excreted from young adolescent boys was 11.6 } 0.5%.
CONCLUSION
Other than filtration, back-diffusion was also involved in renal handling of cefixime. There was enough indication that major portion of cefixime was excreted from a young body through bile.
Collapse