The proposed experiments explain simple, precise, specific and accurate UV spectrophotometry methods for the estimation of Aripiprazole in bulk and pharmaceutical formulation. Aripiprazole is a recent second generation atypical anti-psychotic drug used for the treatment of schizophrenia; four simple UV spectrophotometric methods were established for estimation of Aripiprazole, using double beam UV spectrophotometer (UV-2450, Shimadzu, Japan). Aripiprazole showed maximum absorbance (λ max) at 255 nm in methanolic HCl as a solvent. The calibration curve obeyed Beer-Lambert law in the concentration range of 5 -30 μg/mL. The % recovery was found to be in the range of 98 -100 %. Precision value less than 2 in terms of % RSD indicates precise nature of developed methods. Validation of developed methods was carried out as per ICH guidelines. It was concluded that the results and statistical analysis amongst all four methods, AUC method is most simple, accurate, precise, and specific. All four methods can be used for routine analysis of Aripiprazole in bulk and pharmaceutical formulations.

Background Mifepristone is progestational and glucocorticoid hormone antagonist. The objective of this study is to develop simple and economical stability indicating RP-HPLC method for the determination of mifepristone in bulk and tablet formulation. Result The chromatographic separation was achieved on Qualisil BDS C8 column with mobile phase containing of mixture of Buffer (Potassium dihydrogen ortho phosphate, pH to 3.0 with ortho phosphoric acid) and Organic Solvent (Acetonitrile) 60:40 v/v pumped at flow rate 0.6 mL min−1. The detection of elute was performed using PDA detector at 305 nm. Mifepristone was eluted at 8.67 min. According to international conference on harmonization Q2(R1) guideline, method was validated and shows satisfactory results for accuracy, precision, linearity, ruggedness, robustness, detection limit, quantitation limit. The method indicated to be linear in the series of concentration 3–18 µg mL−1, and correlation coefficient was 0.9997. In acidic, basic, oxidative, thermal, photolytic forced degradation conditions, the peak of degradation product was clearly and well separated from drug peak without any interference in quantitative analysis. This represents stability indicating nature of established method. Conclusion The established RP-HPLC method is simple, accurate, specific, precise, robust, rugged, sensitive, and economical in nature which can be utilized for routine analysis of mifepristone in bulk and pharmaceutical formulation.