METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS DETERMINATION OF AZELNIDIPINE AND TELMISARTAN IN TABLET DOSAGE FORM BY RP- HPLC

A simple, accurate and precise method for the simultaneous determination of azelnidipine and telmisartan in bulk drug and pharmaceutical dosage has been developed by RPHPLC method. Separation was performed on a Hyperchrom ODS C18 HPLC Column (250*4.6mm) column and Buffer 0.05M Potassium dihydrogen orthophosphate (KH₂PO₄) Buffer (pH-4.0): Methanol (60:40) as a mobile phase, at a flow rate 1ml/min and UV detection wavelength 215 nm. The calibration of the method was performed by concentration range of 20-60μg/ml for telmisartan and 40-120 μg/ml for azelndipine. The validation of proposed method was carried out for accuracy, precision, ruggedness, specificity for both alzenidipine and telmisartan the method can be used for routine quality analysis of titled drug in tablet formulation.