Formulation and Evaluation of Nanosuspension Delivery System for Simvastatin

Abstract

Poor water solubility and slow dissolution rate are issues polydispersity index. The obtained results showed that for the majority of upcoming and existing biologically active 
 particlesize (nm) and rate of dissolution has been improved compounds. Simvastatin is poorly water-soluble drug and when nanosuspension prepared with the higher its bioavailability is very low from its crystalline form. The concentration of PVPK-30 with the higher concentration of purpose of the present investigation was to increase the 
 PVP K-30 and Poloxamer-188 and lower concentration of solubility and dissolution rate of simvastatin by the SLS. The partical size and zeta potential of optimized preparation of nanosuspension by Emulsification Solvent formulation was found to be 258.3 nm and 23.43. The rate Diffusion Method at laboratory scale. Prepared nanosus- of dissolution of the optimized nanosuspension was pension was evaluated for its particle size and in vitro enhanced (90.02% in 60 min), relative to plain simvastatin dissolution study and characterized by zeta potential, (21% in 60 min), mainly due to the formation of nanosized differential scanning calorimetry (DSC) and X-Ray particles. These results indicate the suitability of 23 factorial diffractometry (XRD), motic digital microscopy, entrapment design for preparation of simvastatin loaded efficiency, total drug content, saturated solubility study and nanosuspension significantly improved in vitro dissolution in vivo study. A 23 factorial design was employed to study rate, and thus possibly enhance fast onset of therapeutic the effect of independent variables, amount of SLS (X1), drug effect. In vivo study shows increase in bioavailability in amount of PVPK-30 (X2) and Poloxamer-188 (X3) and nanosuspension formulation than the plain simvastatin dependent variables are total drug content and drug.