Abstract
AbstractResults of this investigation revealed some important formulation characteristics of naproxen sodium. Tablets made from the granules, prepared by wet granulation method using water, showed a significant decrease in solution as compared to those made by dry blending method. During wet granulation, heat was evolved due to the hydration of naproxen sodium resulting in the retardation of dissolution. The pseudo-polymorphism and hydration is being investigated by Bansal et. al. (1). In addition, when polyvinyl pyrolidone (PVP K-90) was used instead of PVP K-30, the dissolution was further retarted. Addition of cross carmellose sodium (Ac-Di-Sol) did not change the dissolution behavior of these tablets. When naproxen sodium was granulated with water, a decrease in dissolution rate was observed as mixing time was increased from 5 minutes to 15 minutes. The increase in hardness of the tablet from 10 Kp to 18Kp did not alter the dissolution profile of naproxen sodium. When granulation was prepared using a ...
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