SUMMARY A novel emulsification/solvent evaporation process was developed to formulate prednisoloneloaded Eudragit L and S microparticles as drug delivery vehicles to target different regions of the gastrointestinal tract. Microparticles were characterised in vitro and in vivo. This is the first report of drug absorption form orally administered Eudragit L and S microparticles. INTRODUCTION Dela...

The treatment strategy of colonic injuries is a debatable and highly controversial subject worldwide in various medical centers. The method of treatment of left and .. right colonic injuries, diversity or similarity in their management and particularly differences between the treatment of war-associated injury from other types of colonic damage are among the unsettled issues. The present s...

Colon specific drug delivery has achieved utmost importance because the colon is an area that is vulnerable to a number of diseases including ulcerative colitis, crohn’s disease, irritable bowel syndrome and carcinomas. And, preservation of formulation in upper GIT to colon is still important step. Treatment of these diseases with a colon-specific drug delivery system provides an interesting al...

Colorectal cancer (CRC) is the third most common cancer and the fourth leading cause of cancer death in the world. Currently available chemotherapy of CRC usually delivers the drug to both normal as well as cancerous tissues, thus leading to numerous undesirable effects. Much emphasis is being laid on the development of effective drug delivery systems for achieving selective delivery of the act...

As a pH-sensitive nanomaterial, Eudragit S100 has good colon targeting. However, little research been carried out on its mesoscopic scale. In this paper, the self-assembly behavior of Pulsatilla saponins D (PSD) and S100, as well loading release mechanism PSD, was investigated via computer simulations. The effects characteristics PSD in dry powder state drug-carrier ratio were explored by coars...

   The aim of the present study was to develop a single unit, site-specific matrix tablets of aceclofenac allowing targeted drug release in the colon with a microbially degradable polymeric carrier, chondroitin suphate (CS) and to coat the optimized batches with a pH dependent polymeric. The tablets were prepared by wet granulation method using starch mucilage as a binding agent and HPMC K-100 ...

A multiparticulate system of chitosan hydrogel beads has been investigated for colon-specific delivery of macromolecules using fluorescein isothiocyanate-labeled bovine serum albumin as a model protein. The hydrogel bead was formed by polyelectrolyte complexation of chitosan with its counterion, tripolyphosphate (TPP). The protein release experiments were carried out in vitro under different co...

Although oral glucocorticoids are the treatment of choice for moderate to severe ulcerative pancolitis, their systemic side effects and adrenal suppression account for considerable morbidity. An oral glucocorticoid-conjugate (prodrug), budesonide-beta-D-glucuronide, which is not absorbed in the small intestine but is hydrolysed by colonic bacterial and mucosal beta-glucuronidase to release free...