ABSTRACT:
Site-specific drug delivery plays important role in the delivery drug the targeted site for orally and parentral routes of administration. Microspheres constitute an important part of this particulate drug delivery system by virtue of their small size and efficient carrier characteristics. Magnetic microsphere has been alternatively traditional method for delivering drug .it is the newer approach in delivery of drug to the targeted site by reducing the amount of free drugs circulating in the whole body by reducing excess dose dumping and for limiting toxicity for reducing the side effects of the drug. The magnetic microspheres are delivered using an external magnetic energy to help reach the carrier to the targeted site. the aim of the present study was to investigate overview of the size, properties, mechanism, benefits, drawbacks, different preparation and applications of magnetic microspheres