Research Article

Drug Release Kinetics and Front Movement in Matrix Tablets Containing Diltiazem or Metoprolol/λ-Carrageenan Complexes

Figure 6

Fraction of metoprolol released as a function of time in different dissolution media from matrices consisting of MTP-CRG complex in water (empty circle), MTP-GRG physical mixture in water (square), MTP-HPMC physical mixture in water (diamond), MTP-CRG complex in pH 1.2 (solid circle), and MTP-CRG complex in pH 6.8 (solid triangle). The bars represent the standard deviation . Lines are simple interpolation of the experimental points.
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