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J Vet Sci. 2009 Dec;10(4):293-7.

Modification of pharmacokinetics of norfloxacin following oral administration of curcumin in rabbits.

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  • 1Department of Pharmacology and Toxicology, Veterinary College, Karnataka Veterinary, Animal & Fishery Sciences University, Postbox No.6, Bidar-585 401, India.

Abstract

Investigation was carried out in adult New Zealand white rabbits to study the influence of curcumin pre-treatment on pharmacokinetic disposition of norfloxacin following single oral administration. Sixteen rabbits were divided into two groups of eight each consisting of either sex. Animals in group-I were administered norfloxacin (100 mg/kg body weight p.o), while animals in group-II received similar dose of norfloxacin after pre-treatment with curcumin (60 mg/kg body weight per day, 3 days, p.o). Blood samples were drawn from the marginal ear vein into heparin-coated vials at 0 (zero time), 5, 10, 15, 30 min and 1, 2, 4, 6, 12 and 24 h post-treatment. Plasma norfloxacin concentrations were determined by high performance liquid chromatography. The plasma concentration-time profile of norfloxacin was adequately described by a one-compartment open model. The pharmacokinetic data revealed that curcumin-treated animals had significantly (p < or = 0.05) higher area under the plasma concentration time curve and area under the first moment of plasma drug concentration-time curve. Prior treatment of curcumin significantly (p < or = 0.05) increased elimination half-life and volume of distribution of norfloxacin. Further treatment with curcumin reduced loading and maintenance doses by 26% and 24% respectively.

PMID:
19934593
[PubMed - indexed for MEDLINE]
PMCID:
PMC2807264
Free PMC Article

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