Author(s): Kushal Dhir,Harminderpal Singh Kahlon and SukhbirKaur*
Targeted drug delivery leads to optimum therapy that meets the patient need by improving the safety and efficiency of the administered drug. Colon target drug delivery system has been gained great importance not only for thetreatment of local diseases but also for the systemic delivery of proteins, therapeutic peptides, anti-asthmatic drugs, antihypertensive drugs and anti-diabetic agents.In order to overcome the upper GIT warriors different approaches have been given forward. By the implementation of these approaches the formulation acts a survivor in the upper GIT so as to get colon targeted drug delivery system. This review article discusses, in brief, introduction to targeted drug delivery system, anatomy and physiology of the colon and approaches utilized in the colon targeted drug delivery system.