Starch has vital intrinsic properties that have made its pharmaceutical applications possible. Starches are used in the pharmaceutical industry for many objectives and applications. i.e. it can be used as an excipient, a tablet and capsule diluent, a tablet and capsule disintegrant, a glidant, or as binder. Its Nontoxic and nonirritant properties as well as low costs, ease of modification and versatility in uses have placed starch in a leading position among polymers used as pharmaceutical excipient. In many regular tablets and capsules, starch is used as diluent, disintegrant, binder and lubricant.It has also been used for a wide horizon of specialized drug delivery applications such as delivery of challenging molecules and targeting to specific sites in the body.