Objective: The aim of this study to manufacture the prolonged release lipid nanoparticle (Solid and nanostructure carrier) repaglinide for enhance oral bioavailability. Methods: Solid nanoparticles (SLN) Nanostructured carriers (NLC) were prepared by slight modification in solvent diffusion method. core material used as cetyl alcohol while blend with oleic acid was preparation NLC dispersion. T...