Abstract
A study was made of the serum levels and of the pharmacokinetic parameters of dibekacin after administration by intravenous infusion at a dose of 2 mg/kg of the drug to rabbits using different infusion times. The peak serum level (Cmax) was seen to decrease progressively on increasing infusion time. The maximum value of Cmax was obtained after administration of the antibiotic by single bolus injection with an average value of 18.297 +/- 9.694 micrograms/ml, while the minimum value was obtained after intravenous infusion over 1 hour, with an average value of 6.597 +/- 1.250 micrograms/ml. A series of linear relationships was established between different pharmacokinetic parameters and the infusion time and a decrease was observed in the pharmacokinetic parameters alpha, K12, K21 and K13 when the infusion time was increased. Changes were also observed in the distribution kinetics of dibekacin in the rabbit on varying the infusion conditions, suggesting alterations in the access and permanence of the antibiotic in tissues.
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