ABSTRACT:
Mesalamine is Anti-inflammatory drug used for the treatment of inflammation of bowel i.e. ulcerative colitis and chron’s disease. In the present study an attempt is made to formulate colon targeted drug delivery system of mesalamine using Eudragit S100 and HPMC K100 as a release retarding polymers. Various formulations were developed by varying concentration of Eudragit S100 and HPMC K100 by using wet granulation technique. The developed formulation were coated using thin layer of Eudragit S100 as a pH dependent polymer which starts to dissolves above pH 7 and releases drug at the site of action and protects the tablet from releasing drug in stomach and intestine. The 3² factorial design were used to formulate various formulations of Mesalamine. Developed formulation were evaluated for various parameters like hardness, friability etc. The formulation F9 was found to be optimum based on all evaluation parameters. Also the optimized formulation is found to be stable for 3 months and doesn’t change its colour, shape, release pattern.