A simple, rapid, and highly selective RP-HPLC method was developed for the simultaneous determination of Ambrisentan (AMB) and Tadalafil (TADA) drug substances in the fixed dosage strength of 10 mg and 40 mg, respectively. Effective chromatographic separation was achieved using a Hypersil GOLD C18 column (150 mm × 4.6 mm internal diameter, 5 μm particle size) with a mobile phase composed of met...

The quantitative analysis of tizanidine hydrochloride in both pharmaceutical dosage form and bulk medication has been developed validated using an easy, affordable, quick, unique isocratic HPLC approach. Tizanidine was separated isocratically Waters symmetry C18 ODS as the stationary phase (250×4.6 mm, 5μm particle size), a flow rate 1.0 ml/min, UV detector to track eluate at 230 nm. drug its d...