Srinivas Ganta*, Vidyadhara S Chebrolu Hanumaiah Institute of Pharmaceutical Sciences, Chowdavaram, Guntur – 522018, Andhra Pradesh, India. A B S T R A C T A simple accurate and selective Rp-HPLC Assay method was developed for the simultaneous estimation of three drugs Cobicistat (COB) and Atazanavir (ATA) in their tablet formulation. Two drugs were separated on Xterra C18 (5μm, 15cm ... Read More »