REVERSE PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY STABILITY INDICATING METHOD FOR SIMULTANEOUS ESTIMATION OF ESCITALOPRAM AND FLUPENTIXOL IN PURE AND MARKETED FORMULATION

A Rapid and Precise Reverse Phase High Performance Liquid Chromatographic method has been developed for the validation of Escitalopram and Flupentixol, in its pure form as well as in tablet dosage form. Chromatography was carried out on a Phenomenex Gemini C18 (4.6×250mm) 5µ column using a mixture of Acetonitrile and water (75:25% v/v) as the mobile phase at a flow rate of 1.0ml/min, the detection was carried out at 240nm. The retention time of the Flupentixol and Escitalopram was 2.121, 3.643 ±0.02min respectively. The method produce linear responses in the concentration range of 10-50mg/ml of Flupentixol and 66.6-330mg/ml of Escitalopram. The method precision for the determination of assay was below 2.0%RSD. The method is useful in the quality control of bulk and pharmaceutical formulations.

Keywords: Escitalopram, Flupentixol, RP-HPLC, validation.