%0 Journal Article %T Validated Stability Indicating RP-HPLC Method for Simultaneous Estimation of Codeine Phosphate and Chlorpheniramine Maleate from Their Combined Liquid Dosage Form %A Ramakrishna Kommana %A Praveen Basappa %J Chromatography Research International %D 2013 %I %R 10.1155/2013/404727 %U http://dx.doi.org/10.1155/2013/404727