alexa SIMULTANEOUS ESTIMATION OF PIOGLITAZONE, GLIMEPIRIDE AND GLIMEPIRIDE IMPURITIES IN COMBINATION DRUG PRODUCT BY A VALIDATED STABILITY- INDICATING RP-HPLC METHOD
Biochemistry

Biochemistry

Biochemistry & Analytical Biochemistry

Author(s): G NAVANEETHAN, K KARUNAKARAN, K P ELANGO

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A new, single, stability indicating RP-HPLC method has been developed and validated for the simultaneous estimation of pioglitazone, glimepiride and glimepiride impurities i.e., related compound B and related compound C from combination drug product containing pioglitazone, glimepiride and metformin HCl. The chromatographic separation was achieved on a cyano stationary phase (250 x 4.6mm, 5.0 microns particles) with simple mobile phase combination delivered in gradient mode at a flow rate of 0.8mL min1 at 230nm. In the developed method, the critical close eluting compound of glimepiride related compound B and related compound C was found more than 6.5 resolutions. This method is capable to detect glimepiride related compound B and related compound C at a level below 0.005% with respect to glimepiride sample concentration of 0.1mg mL-1 for a 25 µL injection volume. The proposed method was validated according to the ICH guidelines and proved suitable for routine and stability analysis of these drugs in pharmaceutical preparations.

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This article was published in Journal of the Chilean Chemical Society and referenced in Biochemistry & Analytical Biochemistry

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