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. 2008 May-Jun;70(3):333–337. doi: 10.4103/0250-474X.42985

TABLE 2.

VALUE OF R2 FROM RELEASE DATA OF VARIOUS FORMULATIONS FOR DIFFERENT MODLES OF MECHANISMS OF DRUG RELEASE

Model F1 F2 F3 F4
Zero order 0.853 0.865 0.883 0.877
First order 0.994 0.983 0.965 0.954
Higuchi 0.987 0.985 0.978 0.979

The values listed are the values of coefficient correlation (r2) obtained from release data of various formulations for different models of mechanism of drug release.