An approach to formulating an oral floating drug delivery system for dexchlorpheniramine maleate using factorial design.

The purpose of this research was to formulate and evaluate a floating tablet formulation of dexchlorpheniramine maleate (DCPM) using full factorial design. A 32 factorial design (nine runs) was utilized to optimize the formulation, the contents of hydroxypropyl methyl cellulose (HPMC) (X1) and Carbopol 934P (X2) being taken as independent variables and t50% (Y1), % drug release after 6 h (Y2), % drug release after 12 h (Y3), and floating lag time (FLT) (Y4) as the dependent variables. The tablets showed 99.