Table 1.

Value of r² from release data of various formulations for different models of drug release

Model	MP 1	MP 2	MP 3	MP 4
Zero-order	0.92	0.91	0.90	0.84
First-order	0.99	0.97	0.98	0.94
Higuchi Korse Meyer	0.969	0.987	0.933	0.869
Peppas	0.973 (n = 0.33)	0.982 (n = 0.25)	0.960 (n = 0.45)	0.894 (n = 0.53)

The values listed are the values of coefficient correlation (r²) obtained from release data of various formulations for different models of drug release, and n is the release exponent of Korsmeyer–Peppas model