The Aqueous Stem Bark Extract of Alstonia boonei Exhibits Anticataract Activity in Sprague Dawley Rat

Table 4

In vitro lens aldose reductase inhibitory effect of ABE.

Treatment	Concentration (μgml^−1)	% inhibition	IC50 (μgml^−1)
ABE	50	6.38	92.30
	100	21.21
	200	26.56
	400	26.97
	800	33.86
Quercetin	50	32.17	30.65
	100	41.14
	200	44.57
	400	45.8
	800	47