Abstract
The present article reviews the widely used solid dispersion techniques also focuses the new solid dispersion techniques i.e. microwave oven and hydrotropic solid dispersion technique. PEG-3350, maltodextrin, calcium silicates, colloidal silica, magnesium aluminometasilicates & hydrotropes are new carriers used to increase the solubility. Now a days 40% new chemical entities (NCEs) are poorly water soluble in nature. This physico-chemical parameter becomes obstacle in the formulation of dosage forms of new chemical entities. Solid dispersion have attracted considerable interest as an efficient means of improving dissolution rate & hence the bioavailability of hydrophobic drugs. The most attractive features of the microwave oven technique and hydrotropic solid dispersion technique is the purity of product and ecofriendly in nature.
