PURPOSE Bosentan is a drug currently taken orally for the treatment of pulmonary arterial hypertension. However, the water solubility of bosentan is very low, resulting in low bioavailability. The aim of this study was preparation and optimization of bosentan nanosuspension to improve solubility and dissolution rate. METHODS The different formulations designed by Design Expert® software. Nano...

Evaporative precipitation of nanosuspension (EPN) was used to prepare nanoparticles of poorly water soluble drugs, namely silymarin (SLM), hesperetin (HSP) and glibenclamide (GLB), with the aim of improving their rate of dissolution. The original drugs and EPN prepared drug nanoparticles were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and dissol...