Quantification of Drospirenone and Ethinyl Estradiol Related Impurities in a Combined Pharmaceutical Dosage Form by Chromatography Method with QbD Robustness Study.
Srinivasa Reddy ChintaVaishnavi ChintalaVishnu NandimallaRajyalakshmi ChSasikiran Goud EdigaLeela Prasad KowtharapuNaresh Kumar KatariPublished in: Journal of AOAC International (2023)
A gradient, accurate, precise, and stability-indicating reverse phase HPLC method has been developed and validated to determine drospirenone, ethinyl estradiol, and its nine related impurities in tablet formulation. A Quality by Design technique is used to establish a robustness study.