alexa Resveratrol Enhances the Bioavailability of Fexofenadine in Healthy Human Male Volunteers: Involvement of P-Glycoprotein Inhibition
ISSN: 0975-0851

Journal of Bioequivalence & Bioavailability
Open Access

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Research Article

Resveratrol Enhances the Bioavailability of Fexofenadine in Healthy Human Male Volunteers: Involvement of P-Glycoprotein Inhibition

Satish Kumar Bedada1, Sudhakar Akul Yakkanti2 and Prasad Neerati1*

1DMPK and Clinical Pharmacology Division. Department of Pharmacology, University College of Pharmaceutical Sciences, Kakatiya University, Warangal, Telgana, India

2Cell Signaling and Matrix Biology Center, Foster City, CA, 94404, USA

*Corresponding Author:
Neerati Prasad
Assistant Professor, DMPK and Clinical Pharmacology Division
Department of Pharmacology
University College of Pharmaceutical Sciences
Kakatiya University
Warangal-506009, Telgana, India
Tel: +919494812120
Fax: +918702453508
E-mail: [email protected]

Received Date: August 17, 2014; Accepted Date: August 25, 2014; Published Date: October 03, 2014

Citation: Bedada SK, Yakkanti SA, Neerati P (2014) Resveratrol Enhances the Bioavailability of Fexofenadine in Healthy Human Male Volunteers: Involvement of P-Glycoprotein Inhibition. J Bioequiv Availab 6: 158-163. doi: 10.4172/jbb.10000198

Copyright: © 2014 Bedada SK, 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.



Objective: The purpose of the present study was to assess the influence ofresveratrol onP-glycoprotein mediated drug disposition in humans using fexofenadine as a P-glycoprotein substrate. Methods: A non-blinded, an open label crossover study was conducted in twelve healthy male volunteers aged between 26 and 31 years. A single dose of fexofenadine hydrochloride 120 mg was given to volunteers during control phase and treatment phases. A single dose of resveratrol 500 mg was given to volunteers once daily for period of 10 days. The blood samples were collected at predetermined time intervals during control and treatment phases. The plasma samples containing fexofenadine hydrochloridewere analyzed by LC-MS/MS. The pharmacokinetic parameters were computed by non-compartmental method and the mean pharmacokinetic parameter differences during control and treatment phases were assessed. Results: Treatment with resveratrol significantly increased thearea under the plasma concentration-time curve (AUC) and maximum plasma concentration (Cmax) offexofenadine to 76.7%(2520.92.48 versus 4454.48 ng.h/mL) and 65.2% (415.08 versus 685.58 ng/mL)respectively when compared to control phase. On other hand, apparentoral clearance (CL/F) and apparent volume of distribution (Vd/F) of fexofenadine were significantly decreased by 42.6% (49.46 versus 28.37 L/h) and 42.1 % (591.73 versus 342.62 L) respectively. However, there was no significant change was observed in T1/2, Kel and Tmaxof fexofenadine upon treatment with resveratrol when compared to control phase. Conclusion: The results of the present study showed that multiple doses of resveratrolenhanced the bioavailability of fexofenadine probably by the inhibition of P-glycoprotein mediated drug efflux in humans.


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