alexa Effect of Withania somnifera (Ashwagandha) on the Pharmacokinetics of Amikacin: A Future Antimicrobial Polypharmacy
ISSN: 2157-7609

Journal of Drug Metabolism & Toxicology
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Research Article

Effect of Withania somnifera (Ashwagandha) on the Pharmacokinetics of Amikacin: A Future Antimicrobial Polypharmacy

Parikshit R. Dahikar1*, Nitesh Kumar2 and Y.P. Sahni1

1Department of Veterinary Pharmacology and Toxicology, College of Veternary Science & A.H., Jabalpur (M.P.), India

2Department of Veterinary Pharmacology & Toxicology, College of Veternary Science & A.H., Rewa (M.P.), India

*Corresponding Author:
Parikshit R. Dahikar, M.V.Sc & A.H. Scholar
Department of Veterinary Pharmacology and Toxicology
College of Veternary Science & A.H., Jabalpur (M.P.), India
Tel: 07702149490
E-mail: [email protected]

Received date: December 15, 2012; Accepted date: January 24, 2013; Published date: January 28, 2013

Citation: Dahikar PR, Kumar N, Sahni YP (2013) Effect of Withania somnifera (Ashwagandha) on the Pharmacokinetics of Amikacin: A Future Antimicrobial Polypharmacy. J Drug Metab Toxicol 4:142. doi: 10.4172/2157-7609.1000142

Copyright: © 2013 Dahikar PR, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The pharmacokinetic study of Amikacin with interaction of W. somnifera was investigated after single administration of 10 mg/kg of Amikacin intravenously and 500 mg/kg of W. somnifera orally in six non-descript healthy buffalo calves. Estimation of concentration of Amikacin in plasma was carried out by microbiological assay technique (Agar gel diffusion technique) by using Escherichia coli (ATCC 25922) as test organism. Following a single administration of 10 mg/kg of Amikacin intravenously and 500 mg/kg of W. somnifera orally in six non-descript healthy buffalo calves, plasma concentration of Amikacin, at 1 min of combined administration of these drugs were 17.05 ± 0.28 μg/ml. The effective therapeutic concentration of Amikacin (≥ 1.0 μg/ml) was maintained up to 24 h with mean value of 1.86 ± 0.038 μg/ml. The mean distribution half-life of phase 1 (t1/2 α1), phase 2 (t1/2 α2) and elimination half-life (t1/2 β) were calculated to be 0.060 ± 0.004, 3.99 ± 0.27 and 6.15 ± 0.21 h, respectively whereas the total body clearance (ClB) was ranged from 0.064 to 0.075 L/kg/h with a mean of 0.068 0.002 L/kg/h. A satisfactory intravenous dosage regimen of Amikacin in buffalo calves after combined administration would be 2.36 ± 0.095 mg/kg followed by 1.75 ± 0.10 mg/kg at 12 h interval supports the excellent clinical efficacy of Amikacin in buffalo calves.

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