A Review on Nanosuspension

The current article cites the importance and promising future of new age dosage form. Nanosuspensions are defined as submicron collidal dispersions of pharmaceutical active ingredient particles in liquid phase size below 1?m without any matrix material stabilized by surfactants. Solubility plays an essential role in drug effectiveness and oral adminstration. It improves the bioavailability of poorly soluble drugs. So the nanosuspensions are developed to increase the oral bioavailability. Techniques used in preparation of Nanosuspension are the media milling, high pressure homogenization, Precipitation, Supercritical fluid Process, Melt Emulsification, Lipid Emulsion, Emulsification Solvent Evaporation Technique. Polymers used are Hydroxy propyl methyl cellulose, Hydroxy ethyl cellulose. current efforts are made directed to extend applications in site specific drug delivery.