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http://dx.doi.org/10.4333/KPS.2009.39.1.007

Dissolution Rate Improvement of Tinidazole Tablets using PEO and HPMC  

Kim, Kyung-Joo (College of Pharmacy, Sahm Yook university)
Park, Jun-Bum (College of Pharmacy, Sahm Yook university)
Choi, Jong-Seo (College of Pharmacy, Sahm Yook university)
Hwan, Hwang-Chang (College of Pharmacy, Sahm Yook university)
Lee, Joeng-Sig (College of Pharmacy, Sahm Yook university)
Kang, Chin-Yang (College of Pharmacy, Sahm Yook university)
Publication Information
Journal of Pharmaceutical Investigation / v.39, no.1, 2009 , pp. 7-12 More about this Journal
Abstract
A novel polymeric tablet of Tinidazole was formulated to treat Helicobacter pylori and Giardia lambria more efficiently, It was possible to reduce hepatotoxicity by controlling the release of Tinidazole after peroral administration. A gastric retentive formulation made of naturally occurring carbohydrate polymers and containing Tinidazole was tested in vitro for swelling and dissolution characteristics. Tinidazole tablets containing various concentration of either PEO or HPMC were prepared by the wet granulation method. In vitro release of Tinidazole at pH 1.2 and pH 6.8 buffer solutions was observed at $37^{\circ}C$ by using a KP dissolution method and an UV (313 nm) spectrophotometer. Compared to a commercial Tinidazole tablet, in vitro release of Tinidazole at both pH 1.2 and pH 6.8 buffer solutions significantly decreased as the concentration of PEO or HPMC in the tablet increased up. And the gastric retentive formulation hydrated and swelled back to about 50% of its original size in 30 min. Thus, it was possible to control the release of Tinidazole by changing the content of PEO or HPMC in the tablet, thereby manipulating the release rate and the retention of Tinidazole.
Keywords
Gastric retention; Tinidazole; Polyethylene oxide (PEO); Hydroxy propyl methyl cellulose (HPMC);
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