Untitled

Abstract

The present study was designed to formulate a 5% topical gel formulation containing dexibuprofen. Herein, we reported the utilization of different gelling polymers including hydroxyl propyl methyl cellulose (HPMC), carboxy methyl cellulose (CMC), carbopol 940 and leutrol F127 at three concentration levels. Overall, twelve trials (TD1 to TD12) were prepared in four batches (DEX-I to DEX-IV), each having three trial dexibuprofen gel formulations. All formulations were evaluated for organoleptic properties, clarity, pH, consistency, viscosity and spreadability. Trials of DEX-I and DEX-III batches (containing HPMC and carbopol 940polymers respectively), were a lack in smoothness, clarity and viscosity. Contra wise, TD5, TD6 dexibuprofen gel formulations of batch DEX-II and TD10, TD11 and TD12 of DEX-IV having CMC and lutrol ® F127 correspondingly were found to be viscous and free from grittiness and precipitation. In vitro drug kinetics revealed the Weibull kinetic model as the best (r 2 >0.999, AIC 31. . Stability testing was performed on the selected formulations (TD5, TD6, TD10, TD11 and TD12) having acceptable physicochemical attributes. Only TD11 and TD12 were found to be stable at room temperature after three months. Based on the findings, it is concluded that lutrol ® F127 based dexibuprofen gel formulations delivered excellent spreadability, better drug release, and satisfactory stability profile.