Effect of Cimetidine Pretreatment on the Pharmacokinetics of Sulfisomidine Administered Intravenously in Rabbits

시메티딘이 설프이소미딘의 약물동태에 미치는 영향

  • Published : 1985.12.01

Abstract

These paper was attempted to investigate the mechanism of increased blood level of sulfisomidine by cimetidine pretreatment pharmacokinetically. Especially, effect of cimetidine pretreatment on both renal clearance and biliary clearance of sulfisomidine was studied in rabbits. The results are as follows. The blood level of sulfisomidine administered intravenously in dose of 25mg/kg was elevated significantly by cimetidine pretreatment. Relative bioavailability and biological half-life were increased significantly by cimetidine pretreatment. Overall elimination rate constant ($betha$) and distribution rate constant ($K_{13}$) of sulfisomidine were decreased significantly by cimetidine pretreatment. The renal and biliary clearance of sulfisomidine were decreased significantly compared with those of control rabbits by cimetidine pretreatment. The results may be also related to the inhibition of sulfisomidine metabolism enzyme activity or reduction of blood flow in the liver.

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