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J Adv Pharm Technol Res. 2019 Jul-Sep;10(3):100-106. doi: 10.4103/japtr.JAPTR_26_19.

Advances in orally targeted drug delivery to colon.

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Department of Pharmaceutics, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Indonesia.
Department of Pharmaceutics, Faculty of Pharmacy, Kabul University, Kabul, Afghanistan.
Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang, Indonesia.


Colon-specific drug delivery is critical for treating diseases of colon, such as colon cancer, amoebiasis, irritable bowel syndrome, and inflammatory bowel disease. This study reviews the effects of targeted oral drug delivery on patient by measuring the accurate administration of the drug to specific disease spot, thus enhancing the therapeutic efficacy and provides better therapeutic outcomes. Medically targeted delivery to colon produces local effect on the diseases and hinders the systemic toxic effects of drugs. The delivery of therapeutics to the specific diseased part of colon has its merits over systemic drug delivery, albeit has some obstacles and problems. Colon drug delivery can be used to create both systemic and local effects. Many advanced approaches are used, such as conventional methods for drug release to colon, delayed release dosage forms, nanoparticles, carbon nanotubes, dendrimers, and alginate coated microparticles. This concise review summarizes and elaborates the details of different techniques and strategies on targeted oral drug delivery to colon as well as studies the advantages, disadvantages, and limitations to improve the application of drug in the part of the affected colon.


Alginate; carbon nanotubes; dendrimers; drug delivery; microparticles; nanoparticles

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