Drug Delivery Letters

Marc Schneider  
Biopharmaceutics and Pharmaceutical Technology
Department of Pharmacy
Saarland University
661213 Saarbrücken
Germany

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In Vivo Human X-ray Investigation of Combined Polysaccharide Based Drug Delivery Systems Prepared for Colonic Delivery

Author(s): Sidramappa M. Chickpetty and Basawaraj V. Raga

Affiliation: Department of Pharmaceutics, K.R.E.S’s Karnataka College of Pharmacy, Bidar, Karnataka, India.

Keywords: Colon specific drug delivery system, colon targeting, compression-coat, diclofenac sodium, guar gum, locust bean gum, X-ray imaging and HPMC.

Abstract:

The present investigation was aimed to assess the in vivo performance of combined polysaccharides based compression coated tablets for colonic delivery using X-ray study. Fast disintegrating core tablets containing barium sulphate was compression coated with guar gum (GG), locust bean gum (LBG) and hydroxyl propyl methyl cellulose (HPMC) in the ratio 3:3:4 with a coat weight of 400mg. The developed barium sulphate coated tablet was subjected for in vivo human X-ray study. X-ray study revealed that the tablet remained intact during its transit through upper part of gastrointestinal tract. The colon arrival time was found to be between 5-8 h. The disintegration of the tablet occurred in the colon between 14 to 16 h by the microflora present in the colon. In conclusion, results of X-ray studies revealed that GG and LBG along with HPMC was found to be promising coating materials for targeting drugs specifically to the colon.

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Article Details

VOLUME: 2
ISSUE: 2
Page: [118 - 125]
Pages: 8
DOI: 10.2174/2210304x11202020118