Fig. 3From: Optimized chronomodulated dual release bilayer tablets of fexofenadine and montelukast: quality by design, development, and in vitro evaluationMicromeritic properties of the powder blends. a, b The development of fexofenadine HCl immediate release tablet layers. c, d The development of montelukast sodium sustained release tablet layers (mean ± SD)Back to article page