alexa Stability Indicating Method Development for Simultaneou
ISSN : 2153-2435

Pharmaceutica Analytica Acta
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Research Article

Stability Indicating Method Development for Simultaneous Estimation of Ezetimibe and Atorvastatin in Pharmaceutical Formulations by RP-HPLC

Kumar P1*, Ghosh A2 and Chaudhary M1

1Division of Pharmaceutical Science, S.G.R.R.I.T.S, Patel Nagar, Dehradun, India

2Bengal College of Pharmaceutical Sciences & Research, B.R.B. Sarani, Bidhannagar, Durgapur, West Bengal, India

*Corresponding Author:
Praveen Kumar
Sr. Lecturer, Department of Pharmaceutical Science
S.G.R.R.I.T.S, Patel Nagar, Dehradun, India
E-mail: [email protected]

Received Date: May 09, 2012; Accepted Date: August 13, 2012; Published Date: August 17, 2012

Citation: Kumar P, Ghosh A, Chaudhary M (2012) Stability Indicating Method Development for Simultaneous Estimation of Ezetimibe and Atorvastatin in Pharmaceutical Formulations by RP-HPLC. Pharmaceut Anal Acta 3:164. doi: 10.4172/2153-2435.1000164

Copyright: © 2012 Kumar P, 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

Simple, specific, economical and precise high performance liquid chromatographic method for the simultaneous determination of ezetimibe and Atorvastatin in API (active pharmaceutical ingredient) and formulation has been developed and validated. Chromatography was carried out at 30°C on a prepacked Zorbax SB C18 (5 mm, 250×4.6 mm) column with the 0.02 M Potassium dihydrogen phosphate: Acetonitrile: Methanol (10:40:50, v/v/v) was used as the mobile phase. The UV detection was carried at 236 nm. The results obtained showed good agreement with the declared contents. Ezetimibe and Atorvastatin separated in less than 10 min with good resolution and minimal tailing and without interference of excipients. The retention times of ezetimibe and Atorvastatin were 5.7 min and 9.1 min, respectively. The method was linear in the range of 5–50 μg/ml for Ezetimibe concentration with a correlation
co-efficient 0.9992 and in the range 5–60 μg/ml for Atorvastatin concentrations having correlation co-efficient 0.9994 and the recovery was 99-102%. The method was validated according to ICH guidelines and the acceptance criteria for accuracy, precision, linearity, specificity and system suitability were met in all cases. The proposed method can be used for quantitative determination of Ezetimibe and Atorvastatin combination from API and formulations.

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