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논문 기본 정보

자료유형
학술저널
저자정보
Hetal Patel (Uka Tarsadia University) Aakash Ghayal (Uka Tarsadia University) Ashish Mishra (Uka Tarsadia University) Shailesh Shah (Uka Tarsadia University)
저널정보
한국약제학회 Journal of Pharmaceutical Investigation Journal of Pharmaceutical Investigation 제45권 제1호
발행연도
2015.2
수록면
51 - 63 (13page)

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초록· 키워드

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The objective of present investigation was toprepare and evaluate directly compressible co-processedexcipient for sustained release tablets. Tramadol hydrochloridewas selected as a model drug. Percentage ofglyceryl monostearate, proportion of dicalcium phosphatedihydrate with respect to glyceryl monostearate and concentrationof polyvinyl pyrrolidone (PVP K30) wereselected as independent variables in 3³ Box?Behnkendesign. Percentage drug release at given time (Q3, Q6, Q12)and Carr’s index were selected as dependent variables. Glyceryl monostearate and dicalcium phosphate dihydrateblend was granulated with PVP K30 and passed through 30mesh sieve to prepare co-processed excipient. This wasevaluated for percentage fines, Carr’s index, particle sizedistribution and granular friability index. Drug was mixedwith co-processed excipient and sustained release tabletswere prepared and evaluated. Regression analysis wascarried out to evolve full and refined models. Contour plotswere presented for graphical expression of the results. Themechanism of drug release from all batches followed Fickiandiffusion. Optimized batch was found to be stable for3 months at accelerated conditions (40 ˚C/75 % RH). Itcan be concluded that multifunctional directly compressibleco-processed excipient of glyceryl monostearate anddicalcium phosphate dihydrate can successfully be used tosustain the release of highly water soluble drugs.

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