Optimasi Konsentrasi Hidroksipropil Selulosa dan Polivinilpirolidon dalam Sediaan Buccal Film Simvastatin (Optimization Of Hydroxypropyl Cellulose and Polyvynylpyrolidone Concentration in Simvastatin Buccal Film)
Abstract
Simvastatin, an antihyperlipidemia drug belongs to HMG-CoA reductase inhibitor, has extend first-pass metabolism and low bioavailability (5%) with 95-98% protein bond and short half-life (2 hours). The problem of low bioavailability can be solved by buccal delivery systems with producing simvastatin mucoadhesive buccal film. Concentration of HPC and PVP can affect the value of simvastatin release and mucoadhesive strength of film. Optimization using factorial design method determine the optimum concentration of HPC and PVP with highest simvastatin release and mucoadhesive strength. Solvent casting method used for preparation of 4 formula according to factorial design. The result was formula A (FA) with HPC and PVP concentration ratio (50: 10) gave the highest simvastatin release at 95.41% and the highest mucoadhesive strength at 73.37 grams. FTIR analysis results of FA indicated that there were no change in the functional groups on simvastatin as an active ingredient, and the mucoadhesive residence time showed that FA buccal films can be attached to the goat buccal tissues for 186 minutes.
Keywords: Buccal film, mucoadhesive, simvastatin, HPC, PVP, factorial design.
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