Review on: Novel Approach in Pharmaceutical Gel.

Review on novel approach in pharmaceutical gel explains about gels and its novel development as hydrogel. Gel which is defined as intermediate state of matter consists of liquid and solid components. Hydrogels are also briefly discussed in the review that is defined as three dimensional structures which has capacity to retain bulk amount of water and also biological fluids to swell. In novel approach in pharmaceutical gel is In-Situ gels. In-situ gels are type of hydrogels that are solution in form and undergo gelation in contact with body fluids or change in pH. Some of the polymers that are used in in-situ gelling system are Carbopol-934, HPMC, gellan gum, xanthan gum, carrageenan, xyloglucan, pectin, chitosan etc. This review focuses on the classification, Mechanism of formulation and applications of gel and hydrogels ( In-Situ gel) as novel approach systems in pharmaceutical.