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A novel approach was used to develop and validate a rapid isocratic Reversed Phase-High Performance Liquid Chromatographic method for the simultaneous estimation of Metformin Hydrochloride and Canagliflozin in bulk and pharmaceutical tablet dosage form with forced degradation studies. The separation was performed by using Kromasil C18 column (250mm×4.6 mm, 5mm particle size), Waters Alliance e2695 HPLC system with 2998 PDA detector and mobile phase contained a mixture of 0.01M Ammonium acetate (pH adjusted to 3.5 with orthophosphoric acid) and Acetonitrile (65:35, v/v). The flow rate was set to 1ml/min with responses measured at 254nm. The retention time of Metformin Hydrochloride and Canagliflozin was 2.440min and 3.713min respectively with resolution of 8.95.Linearity was established in the range of 50-300μg/ml for Metformin Hydrochloride and 5-30μg/ml for Canagliflozin with correlation coefficients (r2=0.999). The percentage recoveries were between (99.45%-100.65%) and (99.95%-100.74%) for Metformin Hydrochloride and Canagliflozin respectively. Validation parameters were evaluated according to the International Conference on Harmonization (ICH) Q2 R1 guidelines. The forced degradation studies were performed by using HCl, NaOH, H2O2, thermal, UV radiation and water. Metformin Hydrochloride and Canagliflozin are more sensitive towards oxidative degradation condition. The developed method was successfully applied for the quantification and hyphenated instrumental analysis.

oriental journal of chemistry/oriental journal of chemistry

A Novel Validated RP-HPLC-DAD Method for the Simultaneous Estimation of Metformin Hydrochloride and Canagliflozin in Bulk and Pharmaceutical Tablet Dosage form with Forced Degradation Studies