Fabrication and Development of Pectin Microsphere of Metformin Hydrochloride

Table 3

In vitro drug release kinetics.

Serial number	𝑟^2 value
Formulation code	Zero order	First order	Higuchi
F9	0.926	0.769	0.942
F10	0.946	0.761	0.856
F11	0.947	0.912	0.931
F12	0.973	0.949	0.927