Drug Release Kinetics and Front Movement in Matrix Tablets Containing Diltiazem or Metoprolol/λ-Carrageenan Complexes
Figure 8
Position of the fronts as a function of time in the MTP-CRG complex matrix in water (a), pH 1.2 (b), and pH 6.8 (c): erosion front (circle), diffusion front (triangle), and swelling front (square). The bars represent the standard deviation .
