Table 4.

Percentage inhibition activity for ascorbic acid and E. intermedia.

Concentration µg/ml	% inhibition by ascorbic acid ± SD	% inhibition by Ephedra intermedia ± SD
1	38.15 ± 1.01	30.94 ± 1.01
2	43.35 ± 1.14	38.38 ± 1.12
3	49.09 ± 1.09	40.09 ± 1.18
5	63.19 ± 1.11	50.29 ± 0.76
7	64.10 ± 1.03	58.16 ± 1.11
10	64.38 ± 1.11	58.16 ± 1.33
20	68.19 ± 2.11	62.46 ± 1.35
30	74.21 ± 1.13	65.17 ± 1.71
40	88.10 ±1.50	80.36 ± 1.22
50	92.01 ± 1.10	81.83 ± 1.49
80	95.12 ± 1.22	85.83 ± 1.01
100	98.33 ± 1.28	90.08 ± 1.37