Influence of Sodium Alginate on Hypoglycemic Activity of Metformin Hydrochloride in the Microspheres Obtained by the Spray Drying

Figure 2

Swelling ratio (SR) of microspheres placebo (F0) and formulations F1–F3 (a), F4–F6 (b), and F7–F9 (c).

(a)

(b)

(c)