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Quantitative Determination of Etoricoxib and Paracetamol in Pharmaceutical Dosage Form and in-vitro comparison by Reversed-Phase High Performance Liquid Chromatography (RP-HPLC)

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Author(s): Maitreyi Zaveri | Amit Khandhar

Journal: International Journal of Advances in Pharmaceutical Sciences
ISSN 0976-1055

Volume: 1;
Issue: 2;
Date: 2011;
Original page

Keywords: Paracetamol | Etoricoxib | RP-HPLC | In-vitro | Dissolution | HPLC | COX 2.

ABSTRACT
The objective of this present work was to develop and validate analytical method for quantitative determination of Paracetamol and Etoricoxib in a tablet formulation and also the comparison of invitro data with reference dosage form. Chromatographic separations of the two drugs were analyzed on a Kromasil C18 column (25cm X 4.6mm, 5μm). The mobile phase constituted of Buffer: Acetonitirile with gradient program was delivered at the flow rate 1.0 mL/min. Detection was performed at 220 nm. Separation was completed within 20 min. Calibration curves were linear with coefficient correlation between 0.99 to 1.0 over a concentration range of 48 to 146 μg/mL of Paracetamol and 6 to 19 μg/mL for Etoricoxib respectively. The relative standard deviation (R.S.D) was found to be less than 2.0%. Analysis for dissolution study was also performed by Reversed-Phase High Performance Liquid Chromatography (RP-HPLC) method. Difference factor (f1) were found to be 2.85 and 3.83 and similarity factor (f2) were found to be 73.514 and 68.961 for Paracetamol and Etoricoxib respectively.Keywords: Paracetamol; Etoricoxib; RP-HPLC; In-vitro; Dissolution; HPLC; COX 2.

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