FORMULATION AND EVALUATION OF FAST DISINTEGRATING TABLETS OF SIMVASTATIN USING LIQUISOLID TECHNOLOGY BY USING DOE APPROACH

To obtain an enhanced in-vitro dissolution rate of simvastatin by using Liquisolid technique and Liquisolid tablets were optimized by DoE approach 32 full factorial design using Design Expert Software.Theliquisolid tablets were formulated by using propylene glycol (PG), as liquid vehicle, Avicel PH-102 as a carrier material, Aerosil as a coating material, and aspartame as sweetener and Kyron 314 as a superdisintegrant. The new mathematical model 32 full factorial design was utilized to formulate various liquisolid powder systems and to calculate amount of carrier material and coating material. All prepared liquisolid batches were subjected to weight variation, drug content uniformity, hardness, friability test, and disintegration test and dissolution tests. Liquisolid systems were also tested for DSC, FT-IR. From result of check point analysis of design data, , SMLCFDT10 shows higher Drug release (89.257 %) at less wetting time (124.682 sec.) and disintegrating time (31.843 sec). Simvasatin liquisolid compacts enhance aqueous solubility and dissolution rate in compare to other solubility enhancement technique. Hence, this research work may be useful to formulate fast disintegrating Tablets using Liquisolid Technique which may give rapid onset of action by rapid absorption, maximize efficacy, reduce dose and dose frequency & hence increase patient Compliance.