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AAPS PharmSciTech. 2004 September; 5(3): 10–15.
Published online 2004 April 26. doi:  10.1208/pt050336
PMCID: PMC2750260

Formulation design and optimization of mouth dissolve tablets of nimesulide using vacuum drying technique

Abstract

The purpose of this research was to develop mouth dissolve tablets of nimesulide. Granules containing nimesulide, camphor, crospovidone, and lactose were prepared by wet granulation technique. Camphor was sublimed from the dried granules by exposure to vacuum. The porous granules were then compressed. Alternatively, tablets were first prepared percentage friability, wetting time, and disintegration time. In the investigation, a 32 full factorial design was used to investigate the joint influence of 2 formulation variables: amount of camphor and crospovidone. The results of multiple linear regression analysis revealed that for obtaining a rapidly disintegrating dosage form, tablets should be prepared using an optimum concentration of camphor and a higher percentage of crospovidone. A contour plot is also presented to graphically represent the effect of the independent variables on the disintegration time and percentage friability. A checkpoint batch was also prepared to prove the validity of the evolved mathematical model. Sublimation of camphor from tablets resulted in superior tablets as compared with the tablets prepared from granules that were exposed to vacuum. The systematic formulation approach helped in understanding the effect of formulation processing variables.

Keywords: mouth dissolve tablet, nimesulide, camphor, factorial design, contour plot

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
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Articles from AAPS PharmSciTech are provided here courtesy of American Association of Pharmaceutical Scientists