Table 1. Antidiabetic effect of KPFE in STZ-induced diabetic rats (Mean ± SEM).

Groups/Treatment	Blood glucose level (mg/dL)
	Initial day	Day 7	Day 14	Day 21
I: Vehicle	115.27 ± 4.50	113.34 ± 3.80	112.70 ± 5.20	113.82 ± 2.40
II: STZ	258.41 ± 2.30	294.47 ± 5.50	348.70 ± 5.30	402.00 ± 3.40
III: STZ + KPFE (250 mg/kg)	288.45 ± 2.30	265.50 ± 4.30	194.27 ± 3.80*	152.48 ± 2.70*
IV: STZ + KPFE (500 mg/kg)	298.29 ± 3.50	228.67 ± 4.20	189.75 ± 4.30*	138.43 ± 3.50**
V: STZ + Std. (10 mg/kg)	274.27 ± 3.50	210.72 ± 4.22*	125.41 ± 3.40**	118.53 ± 3.50**

*P<0.05, **P <0.001, When groups III, IV and V compared with diabetic control, i.e. group II.