FORMULATION AND EVALUATION OF EXTENDED RELEASE TABLETS OF TRAMADOL HYDROCHLORIDE
Journal Title: International Research Journal of Pharmacy (IRJP) - Year 2013, Vol 4, Issue 10
Abstract
The objective of this research work was to develop extended release tablets (Twice in a day) of Tramadol Hydrochloride using different Hydrophilic polymers like HPMC K15M, HPMC K4M, Metalose 60SH50, Carbopol 971P, Sodium alginate, Xanthan gum by direct compression method. Various amounts of polymers was used in the twenty four proposed formulations (F1 to F24) for the study of release rate retardant effect at 10 %, 15 %, 20 %, 25 % of total weight of tablet matrix respectively. Then the tablets were evaluated in terms of their physical parameters (weight variation, hardness, friability and thickness), drug content and in-vitro release studies. All the formulations showed compliance with pharmacopoeial standards. The in-vitro dissolution study were conducted using USP dissolution apparatus type-II (paddle method) in 900 ml 0.1 N HCl for first 2 h and remaining 10 h performed in 6.8 pH phosphate buffer at 100 rpm for a total period of 12 h. Based on the dissolution data comparison with innovator product, formulation F14 was found as the best formulation. The drug release of formulation F14 followed First Order kinetic model and the mechanism was found to be non-Fickian/anomalous according to Korsmeyer-Peppas equation.
Authors and Affiliations
Sapnil Chilvalvar , V. Uma Rao, P. Vishnu, G. Ashok, B. Kumar
Keywords
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- EP ID EP141462
- DOI 10.7897/2230-8407.041015
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