Article Id:JPRS-PCS-0000594 Title:Formulation of bilayer tablet containing metoprolol succinate and amlodipine besylate as a model drug for antihypertensive therapy Category:Pharmaceutics Section:Research Article
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The purpose of the present work was to develop an optimized bilayer tablet for antihypertension patients using Metoprolol succinate and Amlodipine besylate as a model drug candidate by optimization technique. A 32 factorial design was employed in formulating bilayer tablet with individual release layer i.e. sustained release layer and immediate release layer. The independent variables selected both cases HPMC(X1), Starch 1500 (X2) and SSG (X1), MCC (X2), respectively. Two dependent variables were considered: t50 (Y1), Q12 (Y2) and t50 (Y1), Q2 (Y2), respectively. The main effect and interaction terms were quantitatively evaluated using mathematical model. Bilayer tablets were evaluated for thickness, hardness, friability, drug content and in vitro dissolution studies. The drug release of Amlodipine besylate and Metoprolol succinate depicted non-fickian diffusion and Super Case II transport mechanism, respectively.