Simultaneous Determination of Multi Drug Components Theophylline, Etofylline, Guaiphenesine and Ambroxol Hydrochloride by Validated RP-HPLC Method in Liquid Dosage Form

The RP-HPLC (reverse phase high performance liquid chromatography) method was developed and validated for simultaneous determination of Multi drug components i.e., Theophylline, Etofylline, Guaiphenesine and Ambroxol Hydrochloride in a liquid dosage form.