Journal Name:
- The International Journal of Pharmaceutical Research and Bio-Science
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Abstract (2. Language):
The main objective of the present study was to develop single-unit floating-pulsatile drug delivery system for obtaining no drug release during floating and in the proximal small intestine followed by pulsed drug release in distal small intestine to achieve chronotherapeutic release of meloxicame for treatment of rheumatoid arthritis, osteoarthritis, spondylytis and to improve the patient compliance. The objective of present investigation was to prepare and evaluate a floating pulsatile drug delivery system of Meloxicam. The prepared floating pulsatile delivery system consisted of three different parts: a core tablet, containing the active ingredient, an erodible outer shell and a top cover buoyant layer. The rapid release core tablet (RRCT) was prepared by using superdisintegrants along with active ingredient. Dry coating of optimized RRCT was done by using different grades of hydroxyl propyl methyl cellulose (HPMC) E5, E15, and E50 and upper most buoyant layer was prepared with HPMC K15M and sodium bicarbonate. Developed formulations were evaluated for their physical characteristics, drug content, in vitro disintegration time, in vitro drug release profile (lag time), floating lag time, floating time . On the basis of these evaluation parameters it was found that optimized floating pulsatile release formulation (FPRT) F8 showed floating lag time of 4 min, floating time of 12 hrs and release lag time of 6 hrs. The F8 formulation showed compliance with chronotherapeutic objective of rheumatoid arthritis.
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FULL TEXT (PDF):
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