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Formulation And Evaluation Of Bi Layer Matrix Tablets

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Formulation and Evaluation of Bi-Layer Matrix Tablets Containing Amoxicillin and Pantoprazole an Oral Modified Release Dosage Form for
Treatment of Peptic Ulcer

Sudhanshu K Chakravati1, Javed Khan Pathan1, Sapna Malviya1, Anil Kharia1
Modern Institute of Pharmaceutical Sciences, Indore (MP)

ABSTRACT
The aim of the present study is to formulate a dual therapy of peptic ulcer containing antimicrobial agent amoxicillin and anti-secretory agent pantoprazole, utilizing the concept of bi-layer tablet system for the effective treatment of H. pylori associated gastric/duodenal ulcer, in an attempt to improve bioavailability and to get maximum therapeutic benefits and patient compliance about the treatment. Different formulas of 575 mg amoxicillin were prepared as sustained release layer by wet granulation method and different formulas of 40 mg pantoprazole in form of immeadeaye release was prepared as extended release matrix layer by direct compression technique. The results showed that formulas prepared with Hydroxypropylmethyl cellulose (HPMC K100M) and xanthan gum and acasia as binder was capable to retard the release of Amoxicillin and Pantoprazole for 12 hr and 8hr respectably which according to dosing frequency of amoxicillin in treatment of peptic ulcer (twice daily) it will prevent drug free interval so achieve complete eradication of H. pylori, thus it was selected for preparation of bi-layer tablet. Regarding Pantoprazole, formula PS-6 (which consist of HPMC K 15 M,

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