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

Table 1

Values of the exponent 𝑛 and relevant correlation coefficients calculated with (1) for drug release profiles from different MTP containing matrices in different media. Standard deviation in parenthesis (𝑛=3).

Matrix/medium	𝑛	𝑅^2
MTP-CRG/water	0.77 (0.008)	0.999
MTP-CRG/pH 1.2	0.64 (0.001)	1
MTP-CRG/pH 6.8	0.68 (0.0001)	0.999
MTP-HPMC FM/water	0.62 (0.008)	0.996
MTP-CRG FM/water	0.89 (0.001)	0.999