Slopes and R2 values obtained from fitting the experimental in vitro dissolution data into the various release kinetic models.

Table 5: Slopes and R² values obtained from fitting the experimental in vitro dissolution data into the various release kinetic models.

Formulation	Zero Order		First order		Higuchi [19]		Hixson-Crowell		Korsemeyer-Peppas [22]
Formulation	Slope	R²	Slope	R²	Slope	R²	Slope	R²	Slope	R²
NP1	-0.021	0.612	-0.004	0.933	8.665	0.933	0.022	0.821	0.7182	0.923
NP2	-0.087	0.652	-0.019	0.921	12.123	0.811	0.032	0.621	0.722	0.966
NP4	-0.127	0.369	-0.022	0.954	17.507	0.795	0.054	0.664	0.735	0.783