Abstract
Nanotechnology is a boon to the science field comprising of nanoemulsions, nanosuspensions, nanocapsules, etc as various formulations. The solubility issue of many drugs belonging to Class II of BCS system has been a great concern since years and due to their poor solubility these drugs were restricted for their use in various formulations. With the advent of nanotechnology, which basically follows the principle of reduction of particle size to submicron level the dissolution profile of many drugs have been altered. Nanosuspensions are defined as colloidal dispersions of drug particles in the vehicle, with particle size ranging from 1 – 1000 nm. Nanosuspensions are far more advantageous over other dosage forms in providing the therapeutic action within a short span and utilizing small concentration of drug therefore reducing unwanted side effects. The present review article describes the preparation methods, formulation, characterization and applications of Nanosuspensions through different routes of administration.