Irshad Alam, M. and Siddiqui, A.-U.-R. 2021. Response Surface Method Aided Development and Validation of Stability Indicating RP-HPLC-UV Method for Impurities of Dextromethorphan Hydrobromide in API and Three Marketed Formulations. Asian Journal of Chemistry. 33, 11 (Oct. 2021), 2737–2745. DOI:https://doi.org/10.14233/ajchem.2021.23361.