ANALYTICAL METHOD DEVELOPMENT FOR SIMULTANEOUS ESTIMATION OF RITONAVIR AND LOPINAVIR IN TABLET DOSAGE FORMS BY RP – HPLC
Sunki Praveen Reddy* and Dr. M. Srinivas
ABSTRACT
A simple accurate and precise analytical method was developed for the simultaneous estimation of Ritonavir and Lopinavir in its tablet dosage form by RP-HPLC. This both combination drug has anti-retroviral agents and hence is used for the therapy of human immunodeficiency virus infection in adults and pediatric patients. Mobile phase with degassed methanol: potassium dihydrogen phosphate (KH2PO4) buffer 55:45V/V was run through standard discovery, Inertsil C18 column(4.6x150mm,5μm) column at a rate of 1ml/min at 25°C and optimized wavelength was 275nm.Retention time for Ritonavir and Lopinavir was 2.997min and 4.370min, %RSD of 0.2% and %recovery of 0.6% were obtained for Ritonavir and Lopinavir respectively. LOD and LOQ values obtained for Ritonavir and Lopinavir. All parameters of validation are found inside the range and method was precise and reliable which is also economical that can be adopted in regular quality
control test in Industries.
Keywords: Lopinavir, Ritonavir, RP-HPLC.
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