Table 2.

Anti-HIV-1 protease activity of aqueous ethanolic extracts of C. adenogonium

Sample name	% Inhibition at various concentrations (μg/ml)
	10	30	100	IC50(μg/ml)
Stem bark extract	27.6 ± 1.4	60.4 ± 1.4	70.9 ± 4.2	26.5
Leaf extract	-	-	17.4 ± 1.4	>100
Root extract	21.4 ± 0.9	66.7 ± 1.1	79.0 ± 1.8	24.7
Acetyl pepstatin*	70.0 ± 0.5	82.4 ± 0.4	88.5 ± 0.2	2.2

Key: The results are Mean ± SD (n = 3), * positive control, - no inhibition.